My coverage is fine at home. At work it's none existent, and I drive around in a car all day, the area is maybe 2 miles of area and there isn't jack for coverage.
I have iOS 8, I'm beta testing it now. But being connected to a wifi connection is unrealistic if you're constantly moving and driving.
As for Quincy, it's even worse. "No Service" most of the time there.
Hopefully an actual T-Mobile employee will read this as it should be looked into.