You really don't need to know much more for your interview. Just relax and enjoy the day. It will probably be fun.
Do I enjoy the school? You bet! Sure, it's hard (what med school isn't?), but I've never regretted my choice to come here. You will get really good at taking tests and your study skills will be honed in a new way like you could never imagine. Also, the COM here is a very tight-knit group. We tend to be quite social, and not so anal about scores (as we were in pre-med). Grading is pass/fail, which eliminates most competition between students and encourages an atmosphere where students help each other do well.
It's a great school. PM me if you want more info.
Good luck at your interview!