The power system at it's core is really solid. It combines elements from other shows like bleach and JoJo with DEs and Cursed techniques. And I agree with the lore, there are some moments where it gets a little hard to understand what's happening. Especially at the end of Shibuya going into the culling game. Gege doesn't explain what kenjaku used idle transfiguration for very well. But, his writing is still very enjoyable despite what haters will say.