The only tower I've noticed up for a couple weeks is one in the center of town. (Aggieville area). I got 68ms ping, 14238kbps down, and 10440kbps up to the Overland Park, KS host using speedtest.net's app. That was pretty standard for that tower. I just recently noticed LTE on my way out of town heading East this weekend. Had 4g for a couple miles outside of town, but by the time i noticed it, it was dropping me back to 3g and didn't complete a speedtest.
I'll drive around and try and test out the different towers here in the next day or 2.
I don't have it at my house, and i'm not consistently in an area of LTE in town to give battery life examples.
This is with the gs3 also.