I always hated B3 -- it's probably the first module I bought that I didn't like and never had any desire to run -- but I just, after having it stored on my hard-drive for ages, decided to pay attention to the original (banned gold-cover) version, and like it much better. It's got a much darker and weirder atmosphere (including read-between-the-lines hints of kinky sex!) and much less of the cheesy plot that (IMO) mars the remake version. Plus it's got a broader scale, with a wilderness section, a 3rd dungeon level (of sorts), a ton of new monsters (including some really bizarre ones), and more explicit room for expansion. I actually want to run this module now!