I love it when any adventure brings in good amount of social interaction. Getting to meet with various NPCs as part of the investigation portion of the adventure promoted good role playing and gave the players allows the players to feel invested in the world.
I had a hard time trying to get the backstory of the island to come into play. I would of liked more pre-written dialog to help guide the types of answers the locals would be willing to provide. The rail-roaded events played out as they needed to but it was forced and the sudden arrival of the final encounter didn't make sense thematically.
I'm sure if I ran this adventure again I would handle some of it differently, but there was so much to prepare for in the island locations. Not knowing which direction players were going you end up needing to throw out half of your preparation since they can't do it all before nightfall.
Any adventure with kobolds is great in my book. They can be goofy or fierce as needed by the story. I only wish there was more variety of them in this session. The bone outfits were a nice touch.
[4 of 5 Stars!]