i was considering berklee for a long time (im at Cleveland State, been there for 2 years transferring out this year) along with other schools. The bottom line is your focus. if your a rock player, berklee is a good school so is GIT in LA. but im mostly a jazz player so north texas is the best school in the country (along with New School in New York, new england conservatory, north florida, north colorado, and the university of miami) so thats where im headed.
anyways, i have a few buddies who are there now. one is a jazz bassist who is intermediate at best, but he got a 2/3 scholarship the other is really rich and a rock player whos great, but doesnt know much about theory and sight singing. they both said that berklee is a great atmosphere and there are tons of gigging oppurtunities around school, but the scene is dead, and most of their instructors dont really know them. but they did say the ensembles are ridiculous in the sense that anything you want to play, there are people there who want to play it with you.
i went into school not knowing a thing about sight singing an a little about theory. after 2 years, i feel that i could teach it too freshman based on the excellent instruction i was given. the teachers at cleveland state are amazing individuals and youd be hard pressed to find better anywhere and i got personal help too. at berklee, you have to realize, there are close to 8,000 students there. you might consider going somewhere local, woodshedding for a few years, then transferring somewhere to get your degree. 2 years at CSU = $10,000 (plus a $1500 scholarship each semester and invaluable instruction with amazing teachers). 1 year at Berklee = $32,000 (where youd most likely be a second thought unless your a genius prodigy).
hands on personal instruction is much more valuable in the long run and you get a better knowledge of the subject/skill by going this route. taking a sight singing class in a class size of 30 allows much more growth and focus than that offered in a class size of 100 in an auditorium where the instructor cant hear you and offer advice on what you need to work on. berklee was a great school, but now is oversaturated. its called Guitar U for a reason, over 1000 guitarists go there, meaning you gotta bust your ass to stand out.
another thing that turned me off was the emergance of singer/songwriters going there. it seems the focus is more on making it in the music business rather than cultivating a unique voice on your instrument. beautiful campus tho.
just my thoughts/experiences/meanderings