I live in a rural/suburban area that is just outside of comcast's area (no cable here), and too far from the CO for DSL.
My neighbor has MT Wirefree and has been happy with it. When I inquired about getting the service, they came out and did a signal test. I was not able to get the signal, but with some persistance and an extra charge they put a repeter in just for me.
The owners of MT Wirefree are locals that have also run into the same problem with getting highspeed from the big boys. The owners will work with you and try thier best to get you service when the big boys just dont give a crap about you.