My son was an '07 BM viola performance Hartt grad. Originally a 5 year double major (performance/music ed) and decided not to spend the additional semester to do his student teaching. My comments are based on his experience as an instrumentalist, and our general observations.
This might be of interest
http://www.meninblackquartet.com/bios.html
The quality of the instruction was very high, as was the peer level. He had nothing but good things to say about all of the various faculty he worked with during his time there, and the overall atmosphere was one of support, development, and encouragement rather than competition, at least on the instrumental side.
Facilities, are ok, nothing lavish and the Fuller music building is in need of some upgrades, but they have broken ground on a slighty offsite building that will serve as the new home for the theater and dance programs, as well as the Community Division. Freshman dorms were redone a year ago, and a new dorm was opened in Sept '07. Campus is fairly compact, in a residential section of West Hartford.
Let me know if you need any additional general info.