my brother did it, it's great. I suggest you go the summer before you graduate. you playing will be the best it's ever been and you can see what it's like (jazz education, university experience, being on your own for five weeks). it was extremely helpful for my my brothers musicianship, as well as to compare other universities (he ended up going to McGill).
remind me what year a junior is... we don't use those terms up here and I'm always confused by them.
hope this helps.