Seconded.
I read High Fidelity and The Long Way Down and found both of them definitely enjoayble but also very shallow, not in the lacking philosophy sense but as if he was scared to develop a character, a theme, a plot line over and above what would fit in a single newspaper column. Or something like that.
The observation he makes in HF, which goes something along the lines of 'we [meaning the male obsessives] decide who to like on the basis of what they like' doesn't apply only to blokes. It is a fundamental tenent of adolescent/studenty intelectual snobbery and I have known plenty of females who used it. And so did I (until I have grown out of it by the age of about 28).
The girlfriend in HF was sostereotypical it was appaling. I personally hate books (and anything else) that make this 'women are from venus men from mars' point about sexes being so incredibly different.
But that might be because secretly I have always wanted to be a geekish bloke with a music fetish...