When I went FF my main worry was the effectice focal length on my longest lens, although there is an obvious difference I have got used to it pretty quicky, I have found it pretty easy to adapt. But the the overwhelming thing I've noticed is how sharp my images are, I'm blown away by this combo, it's heavy as hell but worth the aching arms. DoF seems to fall away beautifully. Here's a example.
One happy bunny 



