I'm about 300 or so pages in (according to my Kindle)... and, well, it's intense. I kind of wish I hadn't read the blurb on the book before reading it though.
When I'm not reading it, it is all I can think about.
Will definitely check out Imperial Bedrooms at some point. I've got a copy of Rules of Attraction already so will get onto that first probably... it's already in my huge pile of books I haven't read yet.
I had no idea there was even a film version of Less Than Zero!