Well I'm glad I didn't watch that Innkeepers trailer before I saw the film or I might've been let down a bit. The film has a very different feel than that trailer lets on (and it quite frankly shows too much). Ti West seems to be channeling a lighter horror side with this film. Where The Roost was a tribute to B-horror pulp, Trigger Man was his drive-in "hunter becomes the hunted" thriller, and House of the Devil was his full on early 80s tribute, this seemed to be his mix of William Castle and Spielberg's Poltergeist.
Like his other films this one definitely has an old fashion "slow burn" to its pacing, but unlike his others once it finally crescendos it just ends too quickly. I honestly found the ending to be very lacking, like it could've used an extra 10 minutes. I still liked it though. I thought the characters were fun, the score and cinematography were great, and West is still showing great skill as a horror director. Looking forward to seeing what he does with his V/H/S short.