I don't have a carpet referral but Poo poo on Veruca Salt. I post mommy questions on here as well as non mommy questions...and so do many others. Some people just help but be rude. I also don't belong to Angie's List and don't place much stock in it. I worked with a guy once who got EVERY vendor he used from Angie's List, one of them hired to do work at the school I worked at, and there were nothing but problems with this guy and his work was crappy! At the same time, this co-worker was having problems with a roof he had done by an Anige's List contractor. I don't know if these businesses pay to be listed on Angie's List but will never use it. I prefer to ask around and get references form people.
Anyway, I just remember the last place we got carpet, Mesa Sales in Mesa. I think their prices are competitive. We got a remnant and carpeted one room. I don't think the installed did a very good job around the door though.