Excel Saga. It is completely different from the manga. They simply took the rough look of the characters and the general setting and went in an entirely different direction.

The anime isn't bad as a crazy slapstick comedy, but it is completely different from the manga I love so much.

Beck was sort of the opposite for me. The anime was great, but the manga isn't nearly as good.

The TV adaptation of Area 88 rubs me in all kinds of wrong ways, meanwhile the old OVA adaptation however is like one of my favorite pieces of animation ever

The anime adaption of Sasameki Koto wasn't great.

The Berserk Movies.
Preemptively the new Berserk series since that CGI is godawful.

Nezchans age is getting to her lol

Index S2 broke me and S1 was boring too

I only liked U.N. Squasron for Area 88 adaptions