Needed to ship something out asap and didn't want to drive all the way to FedEx on Gale, so I…read morecalled this place first to make sure they could help. The guy on the phone let me know they could, so I headed over. Super convenient, no line when I got there and I was in and out pretty quickly. I also found out they do passport photos here which is good to know for next time. Definitely nice having a place like this close by!

Diamond Bar Mail N More provides excellent, professional, fast and very affordable services…read more Whenever I mail my packages across the U.S. and locally, Calvin makes sure to find the best packaging, and specific shipping categorization to maximize the speed of delivery while keeping the cost at a great deal. They provide mailboxes, notary services, copying and printing. When I was down on my luck and out of a job Calvin helped me print and customize my resumes and guerrilla marketing materials. I got a job with AAA shortly after. If you want the best one stop shop for business products and services stop by Diamond Bar Mail n More and see Calvin. He's an amazing expert and you'll like what you get. I guarantee it. - Kevin Lim

We came to this repair shop several times in the past. We liked their computer repair and service…read more The costs were very, very reasonable and fast repair. I took all my son's computer problems here to fix. Highly recommended.

I came in and made it clear from the start that I was ready to pay for a consultation, specifically…read morearound AI tools and data security. I was not browsing, not wasting anyone's time. Within two minutes, the employee (I believe his name was Josh) redirected me to the owner. The owner wasn't there. No offer to schedule anything, no follow-up, nothing. I asked about laptop pricing and whether they could compete with Amazon. He said yes, they can match prices. Fine. But the entire interaction felt rushed, like he had somewhere better to be. No effort to actually help me understand anything or earn the business. That's the thing. I was ready to spend money. On a consultation, on a laptop, potentially both. But when an employee doesn't own the outcome, it shows. The owner should know that customers willing to pay are walking out the door because the person on the floor doesn't seem to care either way. Left with nothing. Spent nothing. Completely avoidable.

I've been coming here to drop off my packages here for years. They accept all carriers and they…read moreprovide services like notary and passport pictures. People are nice here and provide very good service.

So why do you have a giant sign that says USPS if you guys don't take USPS? Waste my time and gasread more

Had issues trying to reformat/reset and wipe out my laptop. Rather than trying to figure it out…read morefor hours, I brought it to Chris to assist. He was able to accommodate with a fast turnaround and at a very reasonable price. Chris and his wife have been in the community for multiple decades and are very pleasant small business owners to work with. It's good to have a local shop that I know I can trust for any future need. Highly recommend.

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.

Great service at this location. I havent been in quite a long time. The owner remembered me and…read more helped me get my mail i had there for quite a while. I have been using their virtual mail system for my business since 2019. The price is fairly reasonable and hasn't gone up too much since.

Quick and easy drop off if you already have a label. I was able to get in and out faster than I…read morehad thought because the person saw that I already had a label even though they were helping someone else at the same time. I can't really speak to value as I only needed to drop off a package that already had a label from my company, they seemed to be trying to recommend cheaper options to the lady in front of me though. They offer all mail services, so you can choose the option that works best for you or that is cheapest. You just have to ask what your other options are. The person behind the desk is pretty knowledgeable and suggests options based on weight and tracking availability for the package. I was thoroughly surprised that he was trying to suggest options.

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

Great company! We needed same-day service and Andy was able to do it within a few hours. Very…read moreaccommodating and great dry cleaning work. Price was affordable. Highly recommend calling first for same-day service. PS. They're on Unit Q.

Always courteous service and very timely. Great management team running an efficient operations…read morewith accurate billing. Andy and team are always getting ahead of potential issues that they may see and are priced appropriately. Highly recommend as I've used their service in 5 hotels, and will continue to use them.

Day & Nite really came through for my family in a time of need…read more Our family recenty lost its patriarch (he was 102 years old...and leaves behind an incredible legacy)....so it had been a sad time for the family. We had to turn around and quickly plan the services due to our family being quite large(over 100 immediate members); We essentially had about a week and a half to finalize and get everything ready. That being said, we needed to print programs ASAP...once we finalized it. Once the programs were done(we had to finalize passages, names, order of services, picture, etc. - so it took about a week to complete), we could not get in touch with some of the printers we had used in the past (much further away), and when we took it to Staples, we were quited over a GRAND for the small job we needed. Suffice it to say, we were in crisis mode...we needed the printing completed, folded, and set up by the next day. ...enter Day & Nite. Another family member used them previously, so we got in touch. Edwin & Yamit (the owner) were really amazing; they were very accommodating and patient. They were already close to closing at the end of the day on Friday. The program project was not formatted in a way that they could print it, so they worked patiently with us until it was correct and ready to go, well past the time they needed to do for a customer. They were going to be closed on Saturday, but they knew we needed the programs completed before Sunday, so they stayed later to complete and finish the job. They printed, scored, and did everything we needed. Overall, the print job was good and done quickly, and really alleviated the stress everyone was under...it was just one less thing to worry about. Day & Nite will defintely be at the top of our list for any project we need done in the future! Thank you again Edwin and Yamit. Truly amazing service!

Our company has all of our brochures and tradeshow materials Printed by Day and Nite. The work is…read morevery high quality. Recently, I got into a bind and needed brochures for a tradeshow. The were printed and delivered to me on only a couple of days with the same high quality. I highly recommend. Thank you Yamit and staff.