I have a previous generation defy advanced (2011) and I love it. I find that it climbs like crazy. That said it is the only full carbon road bike I've ridden for a extensive amount of time and probably the only sub/around 1000g frame I've ridden too. It's great in long sweeping corners, however I struggle to find the same confidence with it in shorter, tighter corners. I just wish the headtube was a little shorter so I could get lower.
I write the weightweenies blog, hope you like it My SwiftCarbon UltravoxMy Velocite Selene
Disclosure: I'm sponsored by Velocite, but I do give my honest opinion about them (I'm endorsed to race their bikes, not say nice things about them)