I ran this for a second-level party. It's a solid six hours of entertainment, with plenty of opportunities for social interaction. I particularly appreciate the fact that the author has anticipated the most likely courses of action for the PCs to take and accounted for them in the adventure. The combat is light unless the PCs go looking for trouble, but the various competitive events should scratch that itch for more combat-oriented players. The new magic items are quirky enough to be interesting, without being overpowered.
I thought for sure I'd have to nerf some of the NPCs to give the PCs any chance of winning any of the competitions, but I tried rolling them out ahead of time and was pleasantly surprised to find that wasn't the case. The NPCs are pretty strong against PCs of that level, but they all have balancing factors that give PCs a fair shot if they're trained in the right skills.
One small caveat: It does contain a few typos (one NPC's armor class is said to be 30 instead of 20, for instance). Be sure to check the comments before prepping the adventure.