I actually used this one at one point, so here I am, finally commenting on it.
It went great. I was running a pretty hack-n-slash AD&D game at the time, and this was a great plot to run, as it was fairly quick, easy to drop in, and highlighted a lot of character that doesn't normally come through. After running a bunch of adventures that took place in unpleasant places, it was fun to run one that focused on the unpleasantness.
Two thumbs up.