Madone 5.2 SL

I am considering the purchase of a stock Madone 5.2SL. The only other
carbon bike I've tested is a VERY expensive Scott. They rode very
differently and I prefer the Trek. Two questions. First, can any of you
folks recommend other carbon frames that I should consider? Secondly, any
thoughts good/ bad or personal experience with the Madone. I currrently
ride a custom steel frame. I was amazed at the comfort of the ride compared
to my old steel bike.

TIA-Alan