Weird, I haven't seen this thread active in a while and then just when I finish the entire thing, it pops up. So I might as well throw my brief, nonspoiler, two cents here...

I've been reading a whole slew of "psychological"/mystery mangas lately and I really enjoyed 20thCB, if only for its storytelling... the "edits" the mangaka made throughout the series really gave a movie-production feel to it, you know? I kept thinking about Memento when I was reading it haha =]

I would say more but I'd hate to give anything away. By the way, does anyone know why they broke off the series so awkwardly and continued with 21stCB? Was there a gap in publication or something?