Schrock gave a lecture at my school about 6 months ago. I didn't get to meet him personally though. I'm definitely more of an organic chemist that uses organometallic chemistry than an organometallic chemist that finds organic applications, so I wasn't all that interested in the stuff that he talked about (which was not metathesis). He is working on some very difficult, but important problems in chemistry, and has made a lot of progress.
I don't know how he would be to work for....