MacDara Conroy’s review published on Letterboxd:
Slow moving, they said it was. And they were right about that. Indeed, it's a good half hour too long; so many extraneous establishing scenes meant to make us care more about the main characters, but it's just banter. They also said it was properly old-school scary, but it's nothing of the sort. Poltergeist? Rosemary's Baby? The Shining? Now those are haunting movies. The Innkeepers is so tame by comparison, it's almost a category error to call it a horror.