The protagonist is spoiled, stupid, entitled little brat. The narrative is not unaware of this, but neither does it utilize this awareness to develop him in any particularly meaningful way. If one was feeling charitable, one could argue that by the end of the book, he is a slightly less terrible person, but any motivation for this seems to come less from anything that happened in the story, and more from a seemingly random epiphany he has early in the narrative that maybe, just maybe, rape isn't actually super cool.
What all of this means, practically, is that the protagonist of the book is extremely unlikable, a fact which is not helped by the fact that I am hard-pressed to think of any active, meaningful decision he made throughout the course of the story. He is basically a less pretentious but more entitled Bella Swan; the only decisions he truly makes for himself are the exceptionally stupid ones that get him into even more trouble--not that he ever suffers largely for these decisions, as someone quickly shows up to rescue him, solve most of his problems, and buy him stuff. Occasionally he has to whine a little bit before all of these things happen, but happen they do. In the end, it feels like we're supposed to be giving him huge props for realizing, along with the fact that rape isn't actually super cool, that the apocalypse would also be, like, bad, and that if you can stop it with minimal inconvenience to yourself, you, like, should.
The world and side characters are nowhere near clever enough to make up for any of this.