I'm surprised that nobody's started a topic for Hades yet. It's absolutely my GOTY for 2020. I've been playing since Early Access but it started great and only got greater as it went to release. The action is fun and different every game as you pick a different weapon and get various upgrades that can take the way you fight in entirely different directions. The action takes all the fun watching a character develop in a 30-hour grind of a game like Torchlight or Diablo--and compresses ALL THAT FUN into just 30 minutes, an incredible arc of watching Zagreus get awesome. I don't think I ever can play another ARPG with slow grinding knowing that Hades is there to be played. And when your build is firing--you FEEL LIKE A GOD, dashing around, stabbing ghosts, throwing lightning, it's amazing.
Then there's the other great thing about the game, which is the story and the framing. Hades is a roguelike, but there's a progressing story that unfolds. There's not a lot of branching to it--you can sometimes choose what subplot happens first, but you can't close anything off. But the characters are a lot of fun, with great personalities brought out through incredible art and voice acting. The interpretations of the familiar Olympians are fun, the interpretations of the less-known Chthonic gods are fun, and the ultimate story of why Zagreus is trying to escape from the underworld is a neat original story that all makes sense in retrospect.
TLDR: Hades is great, you should try it.