I have a TB still in the 14 day window to take it back. My biggest issue is indoor signal strength, outside even on 3g (no 4g here till end of the year) it's fast, go inside and I'm lucky to get 1x or rarely a very weak 3g or nothing. Got the TB because of the 2 year contract I would be ready for 4g. I have read good and bad about the TB,Charge and Revo signals. Any advise? Maybe I should just get an X2 and forget the 4g, motorola's are supposed to have good signal strength from what I've read.