My input
I wanted to see Grace and either Daniel or Alex kill the rest of the family manually. Their deaths were way too nice and they didn't suffer. The supernatural tends to disappoint me, especially when it comes from nowhere.
Other than that it was good in terms of suspense. The sardonic humor was a bit too pushy. Helene and Emily were both insane and unbelievably annoying. The chicks who played them need acting lessons, especially the old one.
The only genuinely spontaneous laugh I had was when Emily said her something like her "kids don't deserve this".
Some questions:
Would Alex die even if Grace didn't take the ring off and call for an annulment in the end?
Would Grace also die then, since she would be married into the family?