I had a '04 R600 (see attached pic). I loved it, it was comfortable, smooth and fast. I had it for about 6 mths and approx. 1700km's on it. Would have kept it but discovered that the frame was too small and caused some pain/discomfort. I went to "wrench science" and did an on-line fit calculator. I required a longer top tube than the 52cm c'dale, unfortunately to get the proper top tube I would have too long of a seat tube. Had to buy a bike with a sloping top tube. Bought an '05 Devinci Silverstone Veloce 9s and am much more comfortable, no more discomfort.

Anyway, the c'dale are in my opinion one of the best all aluminum bike made.