Old thread but worth replying to, since I moved to this area.
T-Mobile's coverage is terrible and the only places you'll really get great coverage, aren't really places where you'll be all the time. I get over 3mbps in the SPRINT store, and at Wal Mart near Giant, but I get 250k in my apartment and basically all of Downtown Lancaster, or anywhere in the general vacinity. It's basically full 3G signal, but you get EDGE speeds. The upload speed, however, is like 1-1.2 Mbps, oddly.
Keep in mind I only live one mile from that Sprint Store... Yet I only get EDGE speeds (but with a 3G icon, marvelous!).
So I'm selling all my T-Mobile phones and switching to AT&T next month. Just got rid of my Vibrant this morning. The HD7 is next. I'm going to AT&T. Lots of people say "whaaa too expensive" but when your data speeds are that terrible you realize some things are worth paying... a lot ... for.
And I will hapily let AT&T raid my wallet for decent HSPA+ speeds.
T-Mobile's 3G speeds are basically crap in the entire major areas of Lancaster City, including downtown. You're basically on Edge if you have this carrier here and live (and especially work) in the city. I'm not going to the highway to get decent speeds. I want it in my living room and with Unlimited Data (or 5GB) I shouldn't have to be tethered to my WiFi connection just to surf the internet decently...