I enjoyed Wano overall, but the ending felt rushed. I was disappointed that Oda changed his mind about Yamato joining the crew and allowing her to develop as her own character. There were also many missed opportunities for Zoro's character development, such as visiting Ryuma's grave, forging a black blade, exploring his backstory, and interacting with Tashigi and not having vegapunk not curing the wano citizens...
One Piece is going downhill and the sales are evidences for it.. the newer generation of manga are changing the scope of Shonen with better overall story and characters. 1100 chapter of One Piece and we barely know anything at all..