My players played all the games until no more tokens where left - sadly everybody mastered the Jingle Jangle just by doing performance checks. Lot's of fun for roleplayers! We did the combat scene on Roll20 - controlling more than 20 npcs is a bit of a pain, but it was worth it. Slab didn't attack in the first round, which gave most of my players the hint, that a friendly solution would be possible. Despite that, they killed most of the lumps, sleeped the rest and brought Slab down under half of his hp before one of the players managed to jump in the hole. They quickly figured out, that the blue gem had to be removed, but missed the hints to the red gems, but a very good perception check did the trick on that. The finale was beautiful and they really liked the rewards they got.
Just a few bits of criticism: I couldn't figure out what the "road-reparative celebration of Reach" and "the transitional tradition of Middle" where supposed to be. I made something up that was good enough, but a little more guidance would have been nice. Ouen Azemar should have an oppurtunity to show off his magic skills. My players just wheren't interested in shiny gems, so they missed them completely.