I DM'ed this module, and contrary to many reviewers here, I quite enjoyed DMing it, and my players liked playing it.
Perhaps it is because I'm the kind of DM that leads his players a lot instead of letting them all by themselves. Perhaps it is because I ran it right after DDAL04-02, which finished by the adventurers returning to the hunting camp and seeing that Lazlo had disappeared, thus already being suspicious at the start of this adventure (which made quite a good link when the "newcomer" arrived : my party was all around him, asking him questions, following him around... quite the moment!).
Fillar was a funny NPC to roleplay (always bobbing his head around like a bird... nice addition), and interestingly enough, it was the players who convinced the villagers to turn against the "newcomer", making the village riot event a logical consequence and not at all out of place.
I added quite a lot of zombies in the final encounter in order to really make it dire and maintain the tone put in place by the two previous adventures (a shame that the Mist Zombies from DDAL04-01 are not used there by default!), but other than that, the roleplay perspective of characters defending a village against a zombie assault are quite good (especially if the DM adds endangered NPCs during the fight -- a bit like what's done in the next adventure's village battle).
Maybe my ratings are too high (keeping in mind spelling errors and whatnot), but I feel like the enjoyment of my players is what matters most (and they did enjoy this one!).
[4 of 5 Stars!]