I love Adventure Time SO MUCH. I actually got into the show by accident about 10 years ago because I was too lazy to get up and find the controller after a friend started the show from the beginning and we just let it play basically forever.
The characters are so honest. I could only do the show justice with a complete essay about why the characters and stories are so great. But the short version is I love how the writers introduce difficult topics with genuine care and honesty. There are SO MANY shows that have been mangled by writers that clearly don't care about respecting the art... look at what they're doing to The Witcher and too many Marvel movies lately... yikes.
There are so many awesome characters with great stories. Give this show a chance and fall in love and enjoy all the emotions lol. You're in for a ride 😊✌️💖