I own this and Castle Ravenloft, which are the two I would always put together. WoA is what most recommend as the one to get if you just get one -- it's difficulty is average (unlike CR which is cruel) and the heroes are good. These D&D games are so much fun because it truly is a "system" of sorts. You will end up having a ton of little figurines (sadly not painted the way some other games have them, but then again you get so many of it it only makes sense!), a bajillion little tokens, and an amazingly well illustrated rulebook, along with a really good collection of scenarios to play (a lot of 'em!).