IT and POS equipment available at AT&T

Hey everyone, I have a quick question. I run my own business and am considering picking up some services from this provider. Does anyone here have actual experience with them, and is it actually worth the investment? I haven't seen anyone else besides AT&T offering this specific lineup. They seem to carry everything from laptops and printers to desktops and POS systems. It would be a huge help if I could hear about your experiences firsthand.
Tnx. =)