Interesting.
I guess my main thing against Kick-Ass is that it felt like it started on a very interesting note, but ultimately shifted into something else entirely. I thought the idea of looking at someone 'realistically' trying to fight crime as a masked vigilante was a pretty neat one. And you actually got to see what would have happened, like when [blackout]he got stabbed and hit by that car when fighting those punks.[/blackout]
Then we got to the stuff were he meets actually superheroes (and, sure, they weren't technically real superheroes or anything, but considering the stuff they did, they were superheroes by all means), it started to change into something else.
I felt it started out kind of as a type of character study, or maybe even satirizing, of nerdy people who kind of have this gimped social life and shelter themselves with escapism to the point were it becomes a type of delusion, or skews their perception of reality. Then the movie more or less does start to become the delusion; [blackout]he gets those implants that dull pain, he gets the girl, he meets people who are more or less a twisted Batman & Robin, rides around on Gatling gun wielding jetpacks, and at the end apparently inspires actual heroes to rise up and defend the city.[/blackout] Which is kind of interesting in its own right, but feels too much like it became what it's commenting on/satirizing. That, and I felt that the more interesting bits were those bits of realism we see, like [blackout]when he gets stabbed, or the 'safehouse' gets raided by the bad guys so easily.[/blackout]
Overall, it was pretty solid, though. I doubt I'll read the comics, but I still enjoyed it well enough. That, coupled that sometimes the humor was somewhat hit or miss for me, I think I'd probably rate it around 7/10