This is one of those places that will probably continue to fly under the radar because how many times do you buy carpet?! Well my BF just bought his first house and it was in need of some gutting- carpet was the first thing to go. First off, the owner wasn't a pushy sales guy which was awesome. We told him our price range, including the pad, and he showed us the selection we could afford. We spent about 5 min there and had already made a decision after having never looked seriously at carpet (Home Depot doesn't have this kind of selection so it doesn't count in my mind). We scheduled the install a few days out and I think we spent a sold half hour laying face down in the carpet after it was installed.
I highly recommend Carpet Depot if you want an honest business with good values. Phoenix needs more good businesses like this.