I adore my Felt F85, although how that relates to the model you're looking at is questionable. Well thought out, very well finished, good attention to detail is the norm with Felt.
Like Mrs M, I found the Felt an exquisite fit, and the combination of fit and comfort is better than any road bike I've ever ridden at any price. It makes me grin big time every time I open the garage door.
So as a brand they're a bit niche, but with good provenance. Indeed, Jim Felt more or less invented the tri bike as we know it today, so they're not just buying frames on spec from a another manufacturer each model year. They actually develop and design the frames in house in America in the manner of Bianchi and some other similar sized brands. They're not like Wibble, Canyon etc, who just buy frames out the catalogue and order in bulk.
That said, you won't know whether it's right for you until you try it. You may love it, but it may not suit you at all. I love Guinness and Led Zeppelin, but that's no guarantee you do. Go try one and see.