It's okay, and I think that they know that that's as far as it can go.
When I first heard of this, I was naturally apprehensive. The trailers looked generic, the acting looked awful, and its delayed October-to-January release date pretty much solidified my cynicism. However, this is fine. The new characters and relocation are a nice breath of fresh air and the acting is fine since everyone's just playing a regular person. The humor works well; I actually found myself laughing a decent amount since it has a naturalistic charm about the whole thing. It's 84 minutes long but doesn't necessarily feel too short or like it's trying to reach a feature-length running time. The story does its job and is reasonably interesting, particularly the ending and how it ties in with the rest of the franchise. The biggest issue, however, is that the humor works but it's not scary, really at all, and when it appears to try, it relies on clichés. There's one jump scare that works but that's it. However, I don't really think that it's even trying to be scary anymore. I think they know that this series is a yearly tradition for its core audience so its style and mythology makes it somewhat endearing for annual casual viewings. This is a tepid and modest achievement: nothing quite new, but with enough entertainment value to be respectable. For a January 3 release, this is far past a tepid achievement. 6.7/10, fine, one thumb up, average (or above average given its genre and release date), etc.
What other families should know
Too much violence
Too much sex
Too much swearing