I had a great experience with Quality Plus Computer! My laptop was displaying the dreaded blue…read morescreen of death, and they were able to completely fix the issue and get it back to me in just one day. What I appreciated most was their honesty and clear communication. They were completely open and transparent from the start about what data/files they could save and what they couldn't, so there were no surprises. Excellent turnaround time and fantastic customer service. I'll definitely be coming back here for all of my future computer and laptop needs!

Sorry, but all I can do is repeat what others with 5 star reviews have said because it describes my…read moreexperience perfectly: I had a great experience with Quality Plus!! From start to finish, everything was handled smoothly and with great attention to detail. What stood out most was their customer service. Justin was so friendly, responsive, and made sure all my questions were answered. It's not always easy to find a place that combines quality work with a genuinely positive experience, but they definitely delivered.

Pro: Very nice and efficient…read more Price is very reasonable and clear on each steps/ possible outcomes If you're in Diamond Bar, he can even meet you and drop off somewhere close to you Con: Only little issue, be sure to call before going to the place. The owner goes around the cities doing his jobs, so business hours do not necessarily mean that he's at the Nogales location

Mr. Kim is an absolute professional and without question knowledgeable in every aspect of the…read moreprofession, which I'm rather illiterate. However, he guided and explained every detail and repaired my Mac Battery. My instrument is rather old and I'm in favor of replacing it in the very near future. WITHOUT QUESTION HIS KNOWLEDGE AND PROFESSION WITH COMPUTERS AND IT ARE SECOND TO NONE. Mits

WOW this is such a special find. Customer Service was…read moreAWESOME. Thank you SO much for fixing my computer.

I checked in a few weeks ago to fix my Chromebook and Hung was such a great Customer Service…read moreRepresentative as always! The Office was super organized with a courteously chic waiting area designed to help me get settled in peacefully. Hung had a clipboard with a sheet ready to fill in all my personal information and I delighted in the cute plants, pop culture toys, and fun selection of interesting Magazines laid out for us to enjoy. Hung modeled an energetically welcoming and helpful attitude that put me instantly at ease, and informed me he would reach out and let me know what the problem with my Chromebook was once it was officially diagnosed. A few hours later I received wonderful news that there was nothing wrong with my Chromebook at all and the battery just needed extra charging! I'm very grateful for how honest ITC is and their patience in helping us understand how our Computers work. I definitely recommend ITC for any repairs your technology needs, their operation is highly organized, efficient, and courteously grounded with enthusiastically thorough communication and admirable professional integrity!

Free and fast diagnosis is a great feature here. Water damage in my phone broke the motherboard…read more Decided to upgrade phone, owner didn't charge at all.

Trust the 5 star reviews here. They are legit. Absolutely great experience here. My phone got that…read moredreaded white/green vertical line on the screen and needed to be replaced. I found this place on Yelp, sent a message, within a less than a minute, I got a quoted price, what time to come in and roughly how long it would take. No BS, no "we'll have to see what condition the phone is in, in order to give you the price", just exact price right on the spot. I came in at the exact appointment time, and to my surprise Jerry, the manager was there waiting for me. Dropped off the phone to him, he told me to come back in 30-45 minutes. He didn't give me any paper or receipt, so I felt a bit worried since there was no proof I left it with him but I did so anyways. Came back 45 minutes later and there was Jerry waiting for me again, showed me the phone and it was a brand new screen, worked even better than before and i was out the door in a few minutes. One of the best experiences I've ever had with repair service and definitely making this my new go to place for any repairs. I also found out Jerry not only does Phone repairs but also, tablet, and computer so I'll be coming here for those in the future. 5 stars for awesome experience here, and another 5 stars for Jerry for being friendly, easy to deal with and just providing good customer service.

I'll be honest -- handing over my MacBook to a complete stranger at my front door had me nervous at…read morefirst. But the entire experience ended up being beyond smooth and professional. I put down a 50% deposit, they ordered the part, picked up my laptop when the part arrived, repaired it fast, and even delivered it back to me at work that same day. Super convenient, great communication, and my MacBook works perfectly again. Highly recommend!

Let's start with the positives, which is how quick Earl is at responding to requests. But that's…read moreabout the only nice thing I can say here because I have very strong suspicions that I was almost taken advantage of when I saw the cost estimate. I was quoted an estimated $540.66 to upgrade my laptop's RAM and SSD. While I am fully aware that computer part prices have skyrocketed because of AI, charging $179 for a stick of 16GB DDR4 RAM and $176.66 for a 512GB SSD is pretty extreme. The only thing that is reasonable is the labor fees since a Micro Center store would charge about the same for a RAM upgrade and changing out an SSD. However, the cost estimate costing more than what my device costs seems predatory. I would have just bought a new computer for $540. I took my device to another shop called Wizfix Computers to get another quote, and the owner of WizFix said that $540 for the same upgrades is a gross overcharge. I was only charged $345 at WizFix ($225 for the same parts plus tax, $120 for labor). And as a bonus, the OS was upgraded to Windows 11. Device has been running well after the upgrades. I would have been overcharged nearly $200 if I chose Ross Tech. Trying to take advantage of someone like this to make extra money is very unethical and bad business.

Absolutely top-notch experience. The owner really knows his stuff when it comes to game console…read morerepair and was 100% courteous, friendly, and professional from start to finish. Everything was handled quickly, and at no point did I feel like I was being upsold or taken advantage of. The pricing was extremely fair, especially considering the high quality of the work. The shop itself is clean, organized, friendly, and inviting, which immediately gives you confidence that your equipment is in good hands. Fast service, excellent workmanship, fair prices, and someone who clearly takes pride in what he does. Owner is A++++++++ -- fast, friendly, knowledgeable, and trustworthy. I wouldn't hesitate to bring another console here and would recommend this shop to anyone needing a repair. Easy 5 stars!

Amazing service! I pass by this place for work and always wanted to check it out since I have two…read morejoycons with severe drift, but never got around to it until recently. Wish I did it sooner. I came by with my cousin since he also had a concern with his phone. Ishmael is super friendly and thorough with his explanations. While he couldn't directly repair my cousin's phone (z flip 6) Ishmael recommended some phone repair shops nearby. The joycon repairs was such a good price for $35. I thought it was about to be double that. The wait was only 20 minutes, so we went out and brought back a fruit tea drink for Ishmael just to thank him. All in all, 10/10! My joycons are working perfectly. Will definitely come back for future fixes for any gaming consoles.

Quality Service! Exceptional Hospitality!…read moreExcellent Price Point! Efficient cleaning of PS5, device kept shutting down during madden. He expertly cleaned device in rapod time and was back to factory speed on no time!

Quick turnaround very assertive in diagnosis and repair. Great service fees very down to earth. All…read morearound great service.

Kaddy's is simply the BEST! Chris and Donovan, part of Kareem's staff, are true professionals;…read moreexperts in their field and over-the-top helpful. Their services are very reasonably priced and have fast turnaround on repairs. In addition to the quality of their service, Kaddy's is a company with heart who care about their customers. Our family lost our house to a fire and I was able to salvage the remains of a laptop that I had purchased from Kaddy's just 3 months prior. I took the charred remains to Chris and Donovan to see if there was anything they could get off the hard drive. 3 days later, they presented me with a replacement laptop with a hard drive containing 100% of the information from my burned unit, over 40 years of business and personal records and history. When I took out my credit card to pay, Chris said "No Sir, this is on Kaddy's as a gift to help you get back on your feet". Talk about being a good neighbor! I can't thank Kareem and his crew enough. They literally saved my business.

Kaddy's Computer Repair is exactly the kind of shop you hope to find when you need someone you can…read moretrust with an expensive computer. They've diagnosed and repaired two of my high-end gaming desktops over the years, and their professionalism and straightforward communication have earned my confidence. They explain what they find, walk you through your options, and give you room to make an informed decision. Just as importantly, they don't push upgrades you don't need or extras you don't want. That approach makes a real difference when you're trusting someone with equipment you've invested a lot in. A professional, trustworthy shop that I can enthusiastically recommend. If you're looking for a place to take your gaming PC, Kaddy's deserves serious consideration.

Surgical patient care was negligent at best. After Total hip replacement I was ignored by surgeon…read moreand nurses after I reported serious complication in recovery room leaving me permanently disabled instead of enjoying my new hip joint.

WOW...Recently purchased a mini pc with 32g ram. Needed to replace the ram with 64g ram. I met up…read morewith Kevin on a Saturday morning around 9:30 - received a call around 11 stating the memory was replaced. Kevin even provided a picture of the bios screen showing 64g of memory was installed. Any living in Diamond Bar (and the surrounding areas) need their computer repaired I highly recommend Kevin.

My MacBook Air screen cracked and I was in need of a screen replacement urgently as I am currently…read morein school. I came across this place and gave them a call, he was very helpful over the phone quoted me a price and gave me a 24 hour turnaround time. I immediately went to drop it off and he was super nice and helpful. My MacBook was ready the next day around the same time I dropped it off. SO FAST !!!!! Definitely recommend this place !!!!! 5+ STARS. I had called other places that gave me a 3-7 day time frame and prices were high. His price was very reasonable and affordable, FAST SERVICE and GREAT CUSTOMER SERVICE! Thank you

I spilled half a bottle of water on my computer and brought it straight away to Chris. He diagnosed…read moreit for 95 dollars and fixed the water damage for another 200. The turnaround time was exactly a day! He knows what he's doing and wastes no time in getting the job done. I highly recommend going to Chris for all tech repair needs.