so good that it's bad
Something that's so good it becomes bad; Something that goes beyond the boundary of the category 'good' it becomes bad; Something too good to be good. This saying is relative to too good to be true.
The graphics of that Anime is just too awesome that I can't take it.
I love Animes with good graphics but, this one's is so good that it's bad!
I love Animes with good graphics but, this one's is so good that it's bad!