From what I've seen so far, it looks better than the other Junji Ito anime adaptations lol.
So far the music is excellent. The music playing in the trailer really nails the creepiness.
Nah just look at the clip that we already got to see. It's completely in black and white which already indicated that this adaptation will be a banger. The black and white choice was a great decision since this is the only way they can somewhat convey the same creepy atmosphere that the manga has.