What are the benefits of a carbon fiber wheel set and are they durable? If I get a scratch will they be ruined?

The benefits are for the most part purely in weight. The 202's are one of the lightest wheelsets out there. That said they are not particularly durable and wouldn't be a great wheelset for training on. Also these are tubular wheels and require gluing the tires onto the rim, something not for the faint of mechanical heart. If you are doing lots and lots of climbing and don't mind sacrificing a bit of durability these are awesome wheels. For a more durable version go for the Zipp 404 clincher version that has an aluminum rim with a carbon faring on it to make it really aerodynamic.

Alternately, you could get a set of Flash Point FP60s, which are very similar to ZIPP 404 Clinchers (same rim depth, same clincher rim, made by the same company) except the manufacturing process is less complex (no dimpling like the flagship ZIPP wheels), and they consequentially cost around $1300 for a set.
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