I highly recommend it: this anime was a breath of fresh air.
The story is interesting and the end is unexpected - at least, for me it totally was -, but unfortunately it is told in somewhat hasty way (I think they should have done 12 episodes instead of 10).
The design is peculiar, but I loved it - even if I understand that someone may not like it and it's also a little bit too confusing during action, expecially in the last episode -.
About the OST, well, it'is just amazing: I gave at the sound a solid 10/10.
"Smell blood" and "Judment" are just too good.
this is better than your average anime, and if not better at least different.
Give it a try.