I'm very seriously considering a set of these wheels too. I have a lot of buddies with Trek bikes that have Rolf wheels on them and they hold up pretty well. Here is a link to a test ride done by one of the staffers at NW Race Report:
Thanks for the info. I am actually considering getting the carbons when they come out, primarily for road races, and also using the front wheel on my tri bike. The alternative would probably be a set of Bontrager Carbons.