I came in to upgrade to a Galaxy S4 and my experience here was beyond amazing. The workers here are so nice, and they also helped me make sure that the phone was right for me. (I wanted to make sure it was a suitable phone for college) Pretty sure the entire staff speaks Chinese as well as English, which makes sense since the store is in Chinatown. From the moment you walk through the door, you can tell that they know what they're doing. They make you feel welcome right away too. They have all the newest phones and lots of great cases. I like that they display the Nevada sales tax in the price display as well so that you have a pretty good estimation of what you'll pay for the phone you want.
I have to say that they really went above and beyond for me and they probably make every one of their customers feel like a VIP. In about 10 minutes, all my contacts and about 1000 pictures were transferred from my old iPhone to my new Galaxy. Additionally, they hooked me up with an awesome case and screen protector, which they applied on my phone like pros. Overall, I would highly recommend this store to anyone looking to get a new phone, upgrade, or just do any AT&T related business.