I got hooked, but I was like "what if I chose this option now?" all the time. So I started completely different character right after I finished. Got couple hours in, but... 1) it's too fresh experience and I should probably give it a bit more time and 2) I wanted the new character to be this fascist, racist, egoist, alcohol and drug abuser, but damn. It's so tough to play against some basic human principles.
I've played many different RPGs during my life, but Disco really is like nothing I've played before. Maybe, just maybe a little like Planescape Torment, but other than that? Nothing comes to mind. Which is unbelievable in this age, where most developers play it safe with basically sequels of successful games and new ones you barely can tell apart...
While Disco Elysium is like no other CRPOG I've played, I have to disagree with your other point, because Indies exist with tons of innovative stuff in there.