I have a 2009 Felt F4. I love this bike. It feels stiff and soaks up the bumps and vibrations. Felt does not cheap out on the components, and I had my bike with the full Ultegra 6600SL grupo (with the exception of the brakes). Almost, 4000 miles later, there are no creaks or rattles and the drive train is still performing good. I had RD hanger fail (my mistake) and had it replaced for about $20. I have not completely pushed the limits on cornering or descents yet, but do feel comfortable on the bike taking turns at the high 20s or descending at mid-40s. All in all, good value for the money.