My husband has owned two Felts, one he rode for nine years. He just bought a new one a few months ago. I have been riding a women's specific Felt FW3 for three years and love it. I have never had a bike fit, and I do think that I would benefit from that, but all in all, the bike has caused me no pain, and I feel like it fits pretty well!!! I would buy another one in a heartbeat, but this one is in great shape, even with over 15,000 miles on it. Good luck. Be sure that you try it before you buy, if at all possible. My shop is very small and they had to order one for me, but I was pretty sure that I was going to buy it, after trying several other bikes.
Good luck!