Simon's Rock is unusualy in that the entire entering class has left high school early. You're treated like an adult there, allowed to make your own decisions and mistakes. If you're chomping at the bit to get on with your life, Simon's Rock is a great way to do it.
It's a mostly liberal arts school, but the technical classes were phenomenal. I was able to transfer to Carnegie Mellon for my junior year, no problem--all credits transferred, and I was just as well prepared as the other Physics juniors.