The berkeley review was way better than princeton...i took both
they're teachers are outstanding...and their overall attitude towards the mcat is surprisingly chill. they all got insane scores on the mcat, and they tell you exactly what you need to know...which is everything.
thats what i loved about them..the blitzed us with every possible thing to know and then some, and i think it worked cause the AAMC practice tests were way easier than what they gave us...
they break down everything and if you dont understand something, they have problem sessions, review sessions, office hours...
they're also more dedicated and more personal...the guy who runs the program flies back and forth between LA and Berkeley to teach, and he knows his stuff (it also helps that he's really involved with UC Irvine medical school..he tells you how to get in to medical school if u ask him).
bottom line...if i could recommend one thing to any person weighing which course to take...it would be that TBR is simply the best