I had a very similar experience actually. Dartmouth is obviously a wonderful school, but my tour guide didn't sell the school well at all. The student tour guide at the hospital was a 3rd year, and the whole experience was just bizarre. I asked how the students felt about doing their clerkships scattered all over New England and the country, since I was worried about it being disruptive. The response was something like, "Oh no, by 3rd year everyone can't wait to get out of here." Definitely not something that made me really want to attend. But of course, n=1, and I don't want to judge the school too too much on the basis of one person.