Well, first of all I haven't grown real fond of the "new" Strawhats yet which sorta makes me feel confused.
I do enjoy One Piece's story a whole bunch. Like you said, that's one of the major things about One Piece that draws you in. The fighting scenes are so-so and the artwork is unique but hardly detailed.
Just don't see where they are going with what has happened recently. Or perhaps I just can't remember
I will reread the last 30 chapters or so when I have time and see if it grows on me.
But the sole reason is that I don't like all these fishmen and fishmer. I guess that I'm just racist.