Adventure Time is really underrated. As an adult it’s hard to watch the hallucinogenic drug addled animation, but if you close your eyes and put your hands over your ears for the screaming, you’ll find it’s very well written
I don’t know about anything being hard to watch in it, I find every season enjoyable. The entire team, including the offshore animators, did a wonderful job. You can feel their hearts in it. Idk about it being underrated either, its so popular they keep going back to the setting in miniseries.
I was a grown adult when adventure time aired, and it’s still one of my favorite shows.
I swore I was too, but I guess I was actually in high school during the first episode. It is without a doubt my favorite show. I run a dnd campaign set in future Ooo from the series I love it so much.