An slice of life thats ahead of it's time.
Weirdly enough if you take all unique "school and slice of life" this will stand out atleast at top 10.
Interesting thing about it's the characters and story as the whole, main character is a delinquent witch is super rare to begin with in modern animation usually he's like second character or even antagonist. But here he evolves and has a reason to be called a "delinquent" So in short he wants a girlfriend really badly but his infamouse reputation only ruins it. Second main character is a girl that is in love with him and makes this series adventure, cause hey dude always ends up fighting and his hand becomes a girl and THAT GIRL makes everyday seem more alive for him even thoe he sees her like a problem rather that a girl that loves him and cares for him.
Animation/Art is so oldschool you may be a fan of it or not but that art style early/mid 2000 is like a golden age of anime and hell it somewhy is really good. Maybe im just reacting nostalgic, maybe respect to that era. In the end Animations/Art look aged asf but the end its good.
Sound... well thinking about it looking at soundtrack trying to remember when music played... it's non existent. You not gonna enjoy it for music. The only god thing about sound is the English DUB is good. Hard to judge when music is poorly done but the dub is good, maybe i shouldnt even include it in as sound rating itself but lets not go full weeb here.
Overall i saw quite few (10+) "school, shounen, Slice of life " this will definitely be as the most unique out there and most underrated of them all. The time was not good for it to be released but everything it did was great out then. If it was done today with minor improvement it would be trully outstanding in quality but now it is a rare gem in pile of rock ready to be picked up by people who want to find out "why am i watching anime ?"