I think he liked it a lot, and credits it with making him who he is today. I think definitely it's a "right disposition" kind of place. For one thing, it's an all-male school, so you have to be a) a man, and b) the kind of man who doesn't mind not having women around. It's also a tiny, tiny school. I think they only take like a dozen students each year, so you have to be prepared to spend all your time with the same really small group of people.
"Deep Springs is founded on three principles, commonly called the "three pillars": academics, labor, and self-government."
http://en.wikipedia.org/wiki/Deep_Springs_College