Just finished this. I have tried to watch a ton of horror TV shows but I've only really enjoyed 2. American Horror Story S1 and this. These are the only ones that for me were succesfull in building a cohesive plot & world that did not become ridiculous or uninteresting before the end.
I agree the horror aspect of the show is often quite cheap and relies too heavily on jump scares, but the scenes are generally given sufficient time to build and still work out nicely overall, though the jump scares grew annoying after a while. Also a lot of great scary scenes that fit more in psychological horror.
Strongly disagree that the acting was bad, some actors are bad/mediocre (past mom/dad, future Steve), but the majority are great.
I loved the plot and characters and the combination of a solid drama with horror. Made me think of Les Revenants a bit, but I liked this more. People who haven't seen Les Revenants and liked this, give it a shot. It's a French show about a little town where suddenly a bunch of people show up who have been dead for years. Les Revanants is less horror & more drama than the Haunting of Hill House, but it's a solid show. Don't watch the US remake.
Spoiler only for people who've seen the whole season (Haunting of Hill House):
Spoiler only for people who've seen the whole season (Haunting of Hill House) and have seen AHS S1: