I did read half of this in the mistaken belief that it was fiction... and thought it was mighty boring and that the novelist had created three singularly dull and unattractive protagonists in his rudderless, pointless young men. Now I realise it's non-fiction (I'm heading towards the end) I'm finding it marginally more interesting but it's hard to care about any of the men who are uniformly free-loading, lazy, and appear to have no desires beyond the next shag or booze/pill binge.
And I'd warn any female reader that you'll feel like slapping the lot of them. If they were even worth that much of your attention: They uniformly treat women like objects - more or less disposable, more or less interchangeable. I'm currently at a rather sickening bit where they gad about a brothel of underage hookers. Oh yes, as you do... that's FUN right?
Suspect this is a boys' novel (and I do use the word boy, not man, deliberately). But personally boys, I'd advise you not to waste your money: This is overlong, badly written, populated by paper-thin characters and expounds frankly rather objectionable views on local people and women.
(ps You may ask why I kept reading - well I didn't really - I had it on audiobook and was on a very long car journey... even then I thought silence might be less dull than keeping on listening!)