The good: Pretty clever set-up, lots of non-obnoxious callbacks and enough jump scares that I got my money's worth.
The bad: For an Evil Dead movie it takes itself a bit too seriously; the characters maybe have a few too many dumb moments.
On the whole: worth checking out if such a movie is to your taste.
BONUS: I totally guaged the type of smart-ass teen that was sitting behind me (ie, exactly the kind of dumbass smart-ass teen that I used to be) and correctly predicted that one of them would knowingly identify the cabin as "The one from Cabin in the Woods". Take my scorn, whippersnappers! I laugh at you from my thereputic bath!