These folks are a mess. We used them a few years ago and had to chase them to get them out after…read morestanding us up for several appointments. They finally came...and did the job wrong. We had another installer come out a take care of it. Fast-forward a few years and we needed this kind of service again...and we forgot about the problems the last time (we actualy forgot who we used last time) so we called Data Installers and made an appointment. And they didn't show. So we made another appointment. And they didn't show again. So we made another appointment. And they didn't show again. So we looked around more for another installer and found one ( I also reviewed them). Oh, I called and made another appointment with Data Installers...still waiting. In the meantime the other guy came out and fixed the problem as scheduled.

Great customer service! They're extremely knowledge and helpful. I actually called multiple…read morebusinesses and they were the most helpful. They answered all my questions and did a fantastic job! Thank you so much!!!

I called to inquire if they had the Rose Gold Apple Watch 10 46mm since I am trying to get it for…read moremy mom as an early retirement gift and the La Verne location was sold out and I bought the last one. LOL The rep Chris said they did and we went right away since we are trying to get it by next Saturday. We arrived and there were few parking spaces. Chris helped us right away. He was extremely helpful with answering our questions since we had to do the transaction under my sister's account where my mom has the line. We ended up asking him if the Samsung watch can qualify under the BOGO since I thought maybe my little sister can use one and be a bummer to waste a promo. Also, we didn't know if they allow a mix & match on the promo. Thankfully it worked out because he told us the Samsung Galaxy watch would be free and just need to pay for the cellular services of $7.50 (half off) since my mom line is already would be $15 for the Rose Gold Apple Watch 10 46mm. Chris helped my sister get her Samsung Galaxy Watch 7 set up with her cellphone. He was extremely professional and made sure we were taken good care of. I definitely recommend seeing him for any help for your Tmobile/phone needs.

Oscar is knowledgeable, funny, so helpful, and a great salesman. The store itself is bright, clean,…read moreand multiple mobile experts were visible. This is definitely my go-to T-Mobile location

We switched to Nemerald for our VoIP needs, and the difference has been incredible. The setup was…read morestraightforward, and their platform is easy to navigate. Call quality is superb, even during peak hours, and their pricing is very competitive for the features provided.

We received excellent tech support from Cliff at Nemerald! He was extremely patient and was able…read moreto help us resolve our call routing issues.

Fusion Networking and Tech did a fantastic job on our Cat 6 cabling project. The installation was…read moreclean, well-organized, and clearly done with attention to detail. Everything was labeled and set up in a way that makes ongoing use and maintenance easy. Their pricing was fair and straightforward. On top of that, they were great to work with as they were very responsive, professional, and flexible with scheduling. Overall, we had a very smooth experience from start to finish. We'd highly recommend Fusion for anyone needing reliable, high-quality network cabling.

They were pretty quick from contacting them to them showing up. They went above and beyond and…read morereplaced all the telco lines to fix the issue.

Five days now without internet service. Again spoke with wonderful apologetic representatives but…read moreabsolutely useless. No one will let me speak to a manager and no one seems to know what to do. Just trying to talk to a person is so frustrating, all they do is prompt you to use the app or text. For what I don't know since they can't help you anyway. My only alternative is to check out Spectrum or T-Mobile internet service. It's such a shame this company I've been so happy with for almost four years SUCKS.

Horrible service. Horrible TV reception. Horrible internet service. Internet goes off and on…read moreeveryday. TV sometimes goes blurry. They used to send a technician out, but now they don't. They want you to set everything up yourself. But I've been having problems with the router, and they still haven't sent a new router. It's only been 2 and a 1/2 years. I've been asking for a new router. They finally sent a new box to replace the one I was having problems with. The only problem is the new box doesn't work. Doesn't power up?

I couldn't be happier with the work this company did in my new office space. I needed this done…read morebefore we moved into the new office in the new year. From start to finish, they were professional, responsive, and extremely knowledgeable. They ran network cables cleanly and efficiently, installed all the jacks exactly where we needed them, and made sure everything was tested and working perfectly before they left. The attention to detail really stood out--no mess, no shortcuts, and everything was clearly labeled and organized. They finished on time, communicated clearly throughout the process, and delivered exactly what they promised. If you're looking for reliable, high-quality network cabling and jack installation, I highly recommend this team. Truly top-notch work!

I can't say enough good things about Calderon Technologies! From start to finish, the entire…read moreprocess was smooth, professional, and exceeded our expectations. We had a full security camera system installed at our home in Upland, and the peace of mind it has brought our family is priceless. The team showed up on time, walked us through every option, and helped design a system that covered all the important areas--front door, driveway, backyard, and even our side yard where we've had concerns before. The clarity of the footage is amazing, and we love being able to monitor everything from our phones when we're away from home. David and his team was friendly, knowledgeable, and truly cared about making sure we felt secure and confident in our setup. If you're thinking about getting a security system for your home, don't wait--Calderon Technologies is the team to trust. Five stars all the way!" -- Robert Z., Upland, CA

This is the only location I will go to when I need any assistance with my service! I went in today…read moreto activate a replacement phone and David was more than great. He was beyond attentive, calm and collective. While attending me, it started to get very busy with walk-ins and David was still very friendly and greated every person that walked in. Even while on the phone with customer service! I have had him help me out in the past and he has never changed his great customer service. Always with a great attitude, Even under pressure. He was very patient with customer service on the phone, while they were giving him a hard time. He ultimately was able to take care of everything as I wanted. Thank you David, you are awesome!! Don't sleep on this location! Best service and great deals on phone, tablets and now watches!

This review is for the entire company of Metro PCS. They are SCAMMING customers with deceitful…read morebusiness practices like "Metro PCS by T-Mobile." They are NOT the same company. They put a 6 month (180 day) lock on their phones if you try to unlock one of their phones and activate with another company (including T-Mobile) but dont have to wait those 6 months if you activate with them. Additonally, calling their customer support is a terrible experience and they will put you on hold for a long time without resolving your issues and they will lie sometimes. Scam practices so in conclusion, bad company no bueno