Up to the first "answer arc" things are great: the atmosphere is disturbing, the build-up is excellent, and the climaxes terrifying. The characters are introduced and fleshed out well via their respective arcs. It balances humor with the horror in a way that makes the horror more effective.
Then the aforementioned answer arcs roll around and things start to drag. Yes there are some disturbing things but it just drags with not much happing till around episode 25-26 where things heat up as the series closes out the season. The Finale is probably one of the best episodes for it's tense scenes and bombshell ending.
It's a great series overall and defiantly worth a watch.
