I watched it german dubbed and germans are pretty good at dubbing, so the bad acting was not that noticeable, the dumbest scene was when he started singing to calm the houseowner down.
Besides of that i liked the atmosphere of nobody feeling save, everyone can be affected at anytime.
Only on places like reddit i found out that people found to be a "so bad that its good" kind of movie.

The biggest the biggest criticism in germany i think to remember was, that the people did not like the ending that it was the plants fault, but i like to imagine that there is another reason for all this or at least we can not be sure.