I bought Disco Elysium during the Steam Summer Sale. I'm only on the second "day" (in game time). It's OK. There's lots of attention to art and fleshing out the NPCs. I'm not blown away yet, though.
I love Disco Elysium but I'd never try to sell someone on it by saying it's a CRPG. It's literally an interactive novel, and it's really only rewarding if you want that and approach it as such.
It rewards you for being weird and wacky, for failing checks and for clicking every dialogue option (as opposed to thinking certain ones are "traps").
It's a weird product that claims to be a CRPG detective game about a murder case, when in the end it's really neither.