Gothic is sometimes a hard theme to play on with D&D. After all, we're essentially pulp heroes in a world of often black and white morality (although we all know the best adventures are where that isn't true). This adventure pulls off the gothic feel perfectly, and is a fantastic adventure to boot.
However, I knocked a star off because there was some editing mistakes and some very powerful magic items for the party level. But overall I don't feel either of these things detract from the meat of the adventure and highly recommend running it in your own games!
[4 of 5 Stars!]