I haven't thoroughly examined his other books but I've given Pervert a good read. It's crude, angry and unlike anything I've ever seen. It also feels mixed up and back-to-front. The narrator comes across as deeply conflicted. He berates the reader on several occasions, yet seems to be seeking our understanding. He hates marriage yet seems to envy monogomous relationships. He's both proud of his life of serial adultery, yet also disgusted by it.
The narrator starts off by telling us this is a true story, and for a "confessional" story to work it needs to feel authentic. Problem is, the more I read the less credible it felt. One thing it lacked was a real exploration of the emotions of any of the characters. For example the narrator walks in to find Agnes (who he claims to be in love with) having sex with another man. She then tells him to "fuck off". I imagine this would evoke some kind of emotional distress but if there is any he certainly doesn't share it with the reader. And no matter how hard I try I just can't really accept that a married person would chose to have sex with someone they don't know. It seems to me they would have to establish some kind of trust first to ensure this guy isn't going to tell their partner or otherwise ruin their lives.
I also think it would seem more honest if the narrator was rejected on one or more occasions. At one point he admits that a lot of people do knock him back, but these stories are conspicuously absent. I imagine they could be quite funny. This story would be stronger if it was fleshed out with a bit more detail.
And finally - the ending wasn't that great. It was a little abrupt and too gratuitous in comparison with the rest of the book.
I've been a tad more critical here than I thought I would be (sorry about that). Overall I found this worthwhile - it's a lot more interesting than most stuff out there. Definitely worth a look.
(review of free book)