We ran this adventure today, everyone loved it! It took a party of 3 new players 3 hours to complete.
This was my second time playing 5e and first DMing. At first when reading the zine it felt like it was going to be a really short session but the story opening proved to be an excelent hook so my players were looking for clues everywhere they went and were really into the story.
PS: Unfortunately, the party did not find the ghost