Really excited to use this! I've found having a notice board is a great way to show the players more of Waterdeep, and let them direct the story a bit more, but I was getting tired of writing my own stuff. These quests give just the right amount of direction, providing a hook and a solution but not writing the entire quest for you. And there's a good mix of alignments represented, which is extremely helpful given that my mostly evil party has little interest in saving random civilians.
Still can't figure out the riddle that prompts the last quest. I might just give my players the clue and see if they can solve it for me.