I don't know why I haven't played this yet. I absolutely loved Planescape: Torment and Fallout 1 & 2. I already own Disco Elysium. I've just never booted it up yet.
It's such an incredible science fantasy universe, probably my favorite piece of fiction from the past decade.
The political history, nature of reality and shape of the world, even things about how computers ("radiocomputers") work are all fascinating to me. It's a shame what happened to the studio. There deserve to be more stories told in that universe.
I think, even though they are very different games, Disco Elysium has a lot of the same feel as Planescape: Torment. A lot of the same introspection of human nature, philosophy, moral judgment, and wry humour. If you like one, I think you'll like the other.