After having spent a fair amount of time with the game now, I think it's safe to say that this game has more content in EA, than Hades 1 had on 1.0 release. Did not expect the EA to be this comprehensive, but glad to be proven wrong.
Game is very much a sequel that doesn't attempt to reinvent the wheel, instead focusing on the strengths of the first game and do more of the same, just a different flavor. If you didn't particularly like the first one, you probably wont like this one either. Seems to be a bit more challenging this time around, with a bigger focus on ranged attacks and spells, whereas Hades 1 was mostly about melee combat. Writing is still a bit comical in nature, I never was a big fan of it.
I do find it kind of hilarious how they managed to release 1 full game and now dropped another in Early Access in less time, than it took Team Cherry to still not release anything remotely playable for Hollow Knight 2, which was announced around the same time as Hades 1 EA released.