I have owned my Felt F75 for about a year and a half and have been very pleased. I agree that fit is everything regardless of brand, model, etc. I put about 100+ miles on it each week and everything is solid. I do recommend that you swap out the stock, knock off SLR saddle though. Even the guys at the lbs told me that it was garbage. Other than that it has been great for everything I need it to do. I think the only major upgrade will be a lighter wheelset. One nice thing about the 07 is the 12-25 cassette rather than the 11-23 I have on the 06.