People seem to have a real issue with the music in this one, honestly I loved it, while i would have liked a little bit more variation in the music as in not the exact same song for every emotional scene, but otherwise i thought it went down pretty well.
I have not read the webtoon so i can't comment on that but as far as korean shows goes i loved this, it was fun, and with a lot of action, quite a bit of gore, and honestly i LOVED the monster design, kind of reminded me of old school evil dead style.
I assume/hope there is a second season because i'm not finished with this one.