Do you know if T-Mobile has improved in the Phoenix area? The website shows 'excellent' coverage around here, but all I read online is horror stories of not having any signal in buildings etc.
Apparently they wanted to work on that in the last 6-10 months, but I haven't heard anything about it since.
T-Mobile is great in the east valley for me - the only place I can't get a signal is in my home office in my house, but that seems to be some kind of odd wireless signal black hole in general. Most of the time I have a 4G signal with quite decent speeds.
I travel all around the valley, and rarely ever have any signal issues with T-Mobile, in the places I do have issues Verizon phones are the only ones with signals.
Where I live(Sun Dance) Verizon phones have little to no signal while I have 3-4 bars.