I was a bit disappointed in Kick-Ass. Partly it's because I only saw it well after it came out (on PSP video disc, no less) and I had been exposed to the hype already. It sounded like it was supposed to be a grittier, more "realistic" take on what a guy trying to be a superhero might go through, but many scenes go completely in the opposite direction (guy explodes in giant microwave, guy pops like a balloon in crushed car, jetpack, etc). Plus, it always rustles my jimmies when a movie showcases over-the-top blood and violence, then teases us with a hot girl holding her bare breasts without providing a payoff (Man exploding? OK. Nipples? Nope.).
I'm curious enough to want to see the second one anyway, but I won't be first in line.