Yeah, the ending wasn't thaaat great, but I think it fits in the whole scheme of things.
An epic gunfight with explosions etc. would have been far worse.
But to be honest, I was really expecting more from the urobutcher. Some kind of mind blowing end with lots of commentary on society and such. Oh well, it seems like all of his stories have some sort of problem, even if they are really original and creative.