I've been playing the game since it came out on June 6, and it was really fun at first.
Now more than a month later I don't have that much interest in the game anymore.
I'm at level 57 with my rogue and the endgame is just no fun, it just feels like an endless life task until you reach level 100.
And Season 1 didn't really convince me either.
I will probably play it less often now and rather start something else.

The story of the game I also found rather mediocre, but the story is not usually in the foreground in Diablo games anyway.
Nevertheless, I liked the story in the third part more and also the cutscenes were much more epic there.