Well it was his first ever serialized manga. It does get a bit better towards the end.
The funny thing is I read GTO right after finishing Angel Densetsu. Clearly GTO was godlike in animation though it was ruined by one thing.
The group/groups scanning and subbing it screwed the shit out of the middle chapters. Seriously did anyone actually read that colored bubble shit! And sometimes it was double-paged with shitty translation/typesetting/editing... sigh.