There are a few positives to this film when the budget is taken into account. However budget doesn't have to effect writing and that is generally terrible, both in the dialogue and the twists that make things unnecessarily complicated.
Don't get me wrong, a good twist can make a movie, but these were clearly all done just for the sake of it and make little to no sense. When they come they go against a lot of pre-established character traits and defy human logical actions.
Overall there is more depth to this low budget horror than most, but the twists throw a lot of that good will out the window. On the plus side you could say at a reach that this movie may have inspired Hereditary, although that's pretty unlikely.