Amid the drafts, we did a few games of mini-masters, which meant that I came away with a few other great cards (Angelic Skirmisher is a monster in limited, Blind Obedience is a good way to get yourself slaughtered in a team game, and I think Ooze Flux has a lot of constructed potential).
I really like Gatecrash. Evolve is definitely my favorite new mechanic of the last few years, and I'm excited to see how the Simic cards in the next set play off it. In the end, Gatecrash is a lot more interesting and fun than Return to Ravnica is, at least in limited. I'm excited to see how they all tie together when we start drafting the whole block, but that's a bit down the road.