Ran this adventure last night and loved every minute of it, I'd like to run it again in a quieter setting with some creepy ambient music to play up the eerie elements as there's a lot to work with here from a storytelling perspective. The story is well written and gives you just enough to entice the party in and make them jumpy and wary of everything around the next corner.
I will say however that I think it would be much less satisfying to run this without the bonus objectives so if you're planning to run it then plan for the whole 4 hours, or at least 3. The first bonus objective is a little uneventful unless the party is looking for a fight so there could be a little more fleshed out there to make it seem worthwhile.
That said a great creepy adventure with some scary thematic enemies, horror themes and potentially deadly encounters for a T2 if the party doesn't play their cards right. Highly recommended.
[5 of 5 Stars!]