One of my favorite aspects about the series is how the story takes it's time to flow, of course this does happen commonly in most anime in my past experience, most of them however often get to the point rather quickly, but with Reborn! it does take way too much time throughout the course of it's first 20 episodes. There are plenty of action scenes like explosions, boxing match, running around with nothing but boxers but above all these elements what really captured my interest is how peaceful and comedic it is.
I while admit though: Just because I enjoyed it, doesn't always mean other people will do and that's acceptable. The Daily Life Arc does not sit well with other people as much as I adored it.
Now for the character designs:
While it may not compare to Akira Amano's manga art style, I still think the anime art style were pretty solid (imo) it was drawn by Masayoshi Tanaka, the same designer who designed characters from animes like Toradora, Your Name, Anohana and High School of the Dead. Still, not as good as Amano-sensei, but it was still pretty solid for me, I also love how it drastically grows the more you watch.
Speaking of characters, the series also has a huge step up in terms of character development progression, there are plenty of them to go for, plus, I believe most of them are well received for the most part, but I'm going to go for the one that the series constantly sets the main focus on (and the one that people seem to hate the most) which is the main protagonist Tsuna, I think a lot of people would disagree but try to hear me out:
Most people would often say that his character evolution is VERY slow and gradual, that it takes like 203 episodes in anime form and 300 chapters in the manga form in order for him to actually become brave (which btw it's only in the last arc and the anime didn't even adapt it).
I believe his character development technically started from episode 2 of the anime; it was during the volleyball match when Tsuna saw that all of his volleyball teammates were trying so hard to win the match even despite them being injured. Rather than running away like he does in the first episode/chapter, He actually decided to give a genuine effort without relying on the dying will bullet from Reborn.
Throughout the entire series, Tsuna wants almost nothing to do with the mafia in general, mostly because he disagrees with the violent history of the organization, he does his best to live a normal life with every chance he can get, compare this to most shōnen protagonist at the time and even now such as: (Izuku Midoriya, Naruto and Luffy) whom three of them had set of specific goals that they are determined to reach and are willing to fight for that said goal through whatever means.
In contrast, Tsuna is actually a pacifist, like he is a merciful person who always worries about the safety of others including the inner turmoil of his opponents even more then his own safety. His level of empathy may actually fuel his determination which is why he gets stronger and stronger, not to mention that he actually threatens his foes first and if they didn't comply then he will take action (example would be his fight with Byakuran).
Overall, There are so many things I loved about the anime, but i'm just going to make it partial, If you enjoy traditional 2000s classic shōnen action anime, Katekyo Hitman Reborn might be worth picking up - Sure you could debate if it legitimately holds up all you want when compared to other shōnen that are mainstream nowadays like Attack On Titan, Promised Neverland, Jujutsu Kaisen and My Hero Academia etc. But:
1)- While it may not appeal to modern audiences, Katekyo Hitman Reborn is a 2006 anime so they should be aware of how decades old the anime is (despite somewhat being ahead of its time)
2)- Being a fan of the series since 2012, I can come clean and say that it has its flaws but I still enjoyed for what it is, although I can admit while there are a couple of shōnen anime (mostly the ones that are beloved and popular) are universally praised, I have to say.. I think I like Katekyo Hitman Reborn more, it is a weird spot to be in but it just so happens, there is something unique about it...
All that said, I'm hoping for the anime to return in this generation and should adapt the rest of the unanimated arcs or a reboot.
