In short, Berman made both good decisions and bad decisions during his tenure with Star Trek, and he produced some classics and some crap. But he managed to keep Trek alive and kicking through four series, four movies, and ~15-18 years (depending on when you consider him starting). And he was in charge for some of the most loved and widely praised Trek. To blanketly characterize him as responsible for all that is bad with Trek is unfair and unjustified.
QFT!
Wow... it is nice to see someone who actually makes sense and is level headed about it!