Even though no one replied, I figure I should update my own thread in case anyone in the future sees this and wonders how Tmo is in Louisville.....
at my house with wifi turned off, I can speedtest 10meg down, at work inside my office, i get about 3meg down....
so it varies, but overall it's pretty solid, and certainly leaps and bounds beyond Sprint speeds...
and I'm only 48 hours in at this point, but so far no voice problems either