Had a lot of fun running this adventure and there's a lot of great little details here to play into the spooky vibe of exploring a haunted house and hints for the players as they slowly work out what's going on.
Some sections are a little light on the details, especially towards the end of the module, a little more guidance may be helpful for some DMs in terms of NPC dialogue to wrap up the adventure and lead it into the next one. A lot has to be ad libbed in the final chapter of the module so some fleshing out wouldn't go astray but all the vital stuff is there if you're well prepared.
At first I thought this might finish up pretty quickly but once the adventurers started exploring the time flew and we finished in about 3.5 hours. All in all a fun adventure and I'm looking forward to running the other two parts of the trilogy shortly.