I just finished the first episode. Like a few had already warned me, not much happens in this episode, but I felt like this was building up for something big. There was definitely a tense, unsettling vibe throughout that only got stronger the further into the episode.
Love the art. While it seems very minimal in detail at times, I like how realistic their facial expressions are. I love the backgrounds, that's where they really put some effort in and made the setting gorgeous.