iv watched all the older seasons, so yes its very good. I'm 14 and miss this show personally. it is very worth watching. can be emotional to some who are fans and nostalgia for me.
I've only seen an episode or two myself. I guess you should just ask yourself "Did I like other Tumblr art styled shows like Steven Universe?" It's kind of the same deal but less awkward. It's REALLY awkward now with it's new episodes, but it wasn't as bad before.
I haven't seen much Adventure Time either but I hear it's really good. I don't have Cartoon Network or any other streaming platform(that I know of) that has Adventure Time. But I would say it's good. My friends say it has a good story to it
Cartoon Network misses Adventure Time too, because in any new show you see there will be an Adventure Time Easter egg (I found the Finn sword in Craig of the creek)