So based on Mr.H`s review i think i would enjoy it very much - i could always ignore any movie ending and pretend that it didn`t happen if it bothers me that much.
I had the same reservations about the movie - leaked script ,direction, kid, too much humor ,etc, but if all of this is well executed and it`s working i could really ignore the ending. Don`t know if it seems strange to you, but ...
My biggest concern would be if it doesn`t have any tension/horror moments ....not a problem if it`s 70/30 comeddy/thriller/horror ,but just not full out comedy with gore.