TR are solid and also travel to a lot of different locations. There are plenty of other trainers that should be on your "to train with" list.
A 4hr drive isn't bad at all, certainly not something to complain about. Friend of mine is driving from WI to Camden TN today, that's 9 hours I believe.
SET's very own DougieMac drives 6 hours to get to Camden.
ETA - Some of those others to train with, though there are MANY more I'm leaving out (just a top of the head list).
Farnam
Haley
Southnarc
Costa
Givens
Really you want to decide what area you want training in (h2h/pistol/rifle/long range etc) and then look for that class.