I played this earlier this year with a great GM and had a chance to GM it myself earlier this week.
Without a doubt this is my favourite scenario so far this season. The thematic elements you can inject into this to make it a creepy scenario for your players is great and it ends up feeling like a nailbiter.
You really do wonder if you're coming out of this thing alive and if you do, you have a great sense of accomplishment and its a memorable one for your character. Buy it. Play it. GM it.