I've read it a several times over the years... When I was 17, didn't understand a thing, and despised it. Now, after reading it four times, I think I understand it to a greater degree and love the fractured narrative, and obscure forking pathways that appear a half-dozen times a page. It's a wonderful avenue into to so many realms. Still, it's an absurdly difficult book to read (right up there with Finnegan's Wake

)
I think I like
Against the Day best though. It's not quite so obscure, and it's so bloody entertaining, and so ridiculous and surreal. I suppose postmodern is the word, though I've always hated the term. I so want this one to be made into some crazy big budget film. The pastiche/patchwork of characters and stories, across the late 19th and early 20th century would be amazing on film. It'd take about 12 hours of film time (a la Lord of the Rings extended editions), and an insane budget, but man, it'd be epic.