I am a huge d2 fan with hundreds of hours laddering doing mf runs and trading to get those juicy rune words, both on the original game and resurrected.
Like many D2/Poe players, I was and still am hugely disappointed by D3. And I really dislike what blizzard has become.
That being said, is Diablo 4 a good game? And more importantly, a good Diablo game?
I want to like it. I feel the skeleton of a great game is there. But right now it feels hollow. For me it feels like it came out a year too soon. Too many small problems and a lack of an interesting end game. They made it as a service game so they can improve it over time, and they seem to be responsive to the players.
Personally I'd wait to see what season 2 or 3 brings.