"Human: Fall Flat" is one of those games that I imagine is either extremely fun or extremely boring, and that all depends whether you have friends playing with you or not.
I have played through all of the official maps twice, as well as some custom made maps, and let me tell you, it is one of the funniest experiences in gaming I've ever had. I still remember me and my friends 'wasting' multiple hours across all maps just pranking and trolling each other, whether that is trying to throw each other off the map or simply doing something wrong in the puzzle, it's genuinely extremely fun.
I can imagine that playing this game alone isn't nearly as fun, so I really just recommend it if you go in with a group of friends, or even with just one friend, as long as you're not alone, there is a lot of fun to be had in this game.