Went to Simuflite DFW for my Hawker 1000 intial and recurrents (I think that's the sim that was moved to MMU), I can say I liked them quite a bit. Of course, for the other Hawkers I attended Simcom in Orlando and in comparison to them CAE was great.
Turnover wasn't an issue for the 3 years I went there, at least not in the hawker program, but with the move to NJ who knows. A lot of those guys were local to Dallas.