I really like the map generator, and I think both the story hooks are well written! I feel that if I were to run this crawl though, I would have trouble coming up with interesting content after a certain point, even with the tables provided. With six to fifteen rooms on each floor, and at least a few floors to go through, the tables will be exhausted before long, especially if you try to run the challenging version of the crawl. I also feel that tailoring the content of the tables to better represent the writing in the story hooks would help GMs to weave a cohesive narrative.