Great adventure, overall. I'll break up the review into pros/cons, and then by each Part.
Pros: Great RP opportunity, plenty of player choice, interesting use of "complications" in final fight.
Cons: Not much incentive for players to care about townsfolk, the gnoll fights are one-dimensional, and there are a couple of moments where, outside of meta-gaming, there are too few (if any) clues as to the desirable actions to take.
Part 1- Despite the amount of time given to town interaction here, there just isn't enough time in a 2-hour adventure to really get the players to care about the townsfolk in any significant capacity. The sheer number of choices to do in Parnast can lead to party splitting, which prolongs this part a little. This is the first instance of there not being any clue as to why something should be done (barring meta-game thinking). I'm referring to the "blue liquid" potion. No one in town knows what it does, and only a player who thinks "Well, it wouldn't be there and be mysterious unless it was important" or one who has played the adventure before would have any draw towards obtaining it. Despite this small contention, I do love how well-defined the dramatic tension between the townsfolk is.
Part 2- Fantastic RP opportunity with Prince Thornacious, however, there are no clues (outside meta-gaming) to suggest that one should address him using "courtly niceties." Even his title of Prince doesn't evoke much response from players because of how diminutive and non-threatening the tiny sprite is. His presence doesn't exactly warrant respect or defference. By the time he would DEMAND these courtesies, it is mostly too late, and he is beyond reason/talking to. Choosing to fight here creates the more interesting dynamic of both the hunters being in harm's way, and the fight mechanics themselves.
Part 3- No real cause for players to interact with Blassios, the guide. The Boar/Gnoll fight is a little too straightforward, one-dimensional, and therefore boring due to a lack of these creatures having no interesting mechanics. It's little more than a slam-fest.
Part 4- Again, the gnoll fight here is boring. Straight-up who-can-deal-more-damage-faster type deal. Because of time constraints, cultivating care for the villagers is difficult at best, and so the most interesting part of the fight, the complications, may end up not mattering much at all. The fight against the Fey creatures is a much more interesting branch, mechanics-wise, but I feel that most parties end up siding with Thornacious, and missing out on the fun fights.
Conclusion- This one ends rather abruptly, but many times that's what one needs in a AL game!