This is literally what Mark Millar is since he distanced himself from publishers to do his own thing. It's not as good as Kick-Ass, but it's an example of him coming up with a fairly simple idea, getting himself a world-renowned comic artist and executing it in very "Millar" style. If you've ever read a book by him, you know the gist, pop culture references, heavy cursing and general crudeness. It can get old here and there, but his dialogue genuinely is closer to reality than most in modern comics.
I enjoyed this book, and I've seen it described as "lazy" and "unoriginal", which I don't think it is. I think Millar genuinely believes in every idea he has, and he does have some pretty good ones. But he's now stuck in a rut of doing these "what if" stories and it's getting tiresome to many. Also, with him being so prominent lately, I feel this book was heavily overshadowed by his other projects and so it's destined to be forgotten along with the likes of Nemesis.
It's not his best or his worst, but I do like heist fiction, and it was interesting to see a superhuman version. I like the art and most of the writing is solid, if a little too familiar to those who have ever read more than a page of Millar's work. He seems so set on treading new ground that he's actually just treading water.