Just to make sure.. the fun in the show is how utterly trashy and preposterous it is right?
Because if I were to choose 2 adjectives to describe the first two seasons, it would be those.
It's not enough to have one haunting.. there has to be a gazillion hauntings.
It's not enough to have a mental asylum and crazed slashers.. there has to be aliens, and angels.
I've watched a few episodes of Penny Dreadful so far, which is somewhat similar in tone, but that show justifies its hokiness with its name. American Horror Story, I keep naively hoping will actually turn out to be a horror story.
Which isn't to say there's no fun to be had. It's just the kind of fun that doesn't require suspension of disbelief so much as just accepting that everything that's going to happen will be at best, borderline idiotic, and laughing along for the ride.