Why, BG3 definitely has some exceptionally strong writing in places. Far beyond what BG1 and BG2 had.
BG3 is also riddled with details and unique content that you wont find if you just play the game. BG1 had some easter eggs, especially in the early game, but that was it.
For that and the many ways you can build an interesting character the replayability of the game is through the roof.
About "not feeling like D&D or BG", well, Larian put their own spin on this. I think its mostly just different though. Not actually bad.
