Although the protagonist and some other characters have somewhat unappealing designs, it was still enjoyable to watch. The thematic essence reminded me of the movie Crows Zero, which I used to like very much.
Accel World
It seemed good at first, but from the second half onwards, I became very bored with what was happening on the screen, and by the end, it didn't feel like time well spent.
School Rumble
I liked the first season, but I finished the second season with some difficulty.
Genjitsu Shugi Yuusha no Oukoku Saikenki
And this one is right up my alley.