It'd be better if you could visit when school is in session. Most schools are totally deserted when school is out so its hard to get a feel for the culture place. At the very least arrange to meet with some faculty in areas that interest you if you go over the summer.
This is probably common knowledge, but law schools all do admit weekends where admitted students are invited out and shown around, sent to classes, fed, and generally schmoozed by the schools. Of course that might not help with ED.