I have not. I read the jacket on his other books and they all seem to be carrying the same theme of rich people who have it all but are emotionally troubled and in different times and locations. Set to detailed descriptions including the gore.
I was going to get one more Ellis work and if it was told in a different tone than American Psycho, I would read others. But judging from American Psycho and just the short blurbs on his other works it seems almost like he is a one trick pony. But I will give it another book until I decide.
Any suggestions?
I think Less than Zero and Rules of Attraction are excellent. Admittedly they don't stray from the theme you identified. However they are definetely less gory. I started Less than Zero and literally read the entire thing in a couple of sittings, I just couldn't put it down.
The picture of young rich college kids in Rules of Attraction in Reagen's America is, in my opinion, exceptional in its sense of desolation, futility and too much money.