I came into this expecting a live action adaptation of the manga/anime, but they ended up using new characters and a new setting to tell a different story. At first I was just going to cut the show off, but I decided to give it a chance and honestly..
It's not bad. They stick to the rules that were developed inside of the book and show pretty well, the only thing that concerned me was the head swapping. There is 1 parasite that swaps bodies a lot but in the source material, swapping bodies was regarded as pretty dangerous. I also don't understand why they'd swap bodies when they had the ability to change the way their faces looked in the book/show.
I'm not a film critic and I am not going to pretend to be like other reviewers. The show is a decent watch for fans of the series. It's not as deep in terms of philosophy and character development as the book/show but it's a good time passer. If you've never seen the source material, the show might seem a little goofy.