Rewatching it from season 1, I got up to about season 5 and then haven't seen the last few seasons but want to watch all of it. It's a lot darker than I remember though lol.
I've watched through the entire series twice. It impresses me as the only animated series in which the characters actually age that I have found. Funny how when Finn is a little kid, everything is so simple, but as he gets older, it becomes obvious that certain characters are not the pure and good people they think they are.
@LordShadowfire Oh yeah agreed and then things get complicated in the later seasons. It really is a deep show. I mean it hides under the colorful animation but if you think about it, Finn is the only human aside from his piece of shit felon dad in an apocalyptic landscape. I don't know if his dad turns around or anything but I got to the season where Finn finds out about his father and I think that's the last I watched of it so I want to watch the entire seasons to the end because I never got a chance to finish it.
Right now I'm on S1 EP6 haha so a long way to go.
Then also there's other things like the story of the Ice King and Marceline, really dark stuff. The colorful animation hides it really well though.