I've really not been given a single ounce of negative feedback about it. Most everyone is in agreement that the last two mainline games were high quality and fun. I've basically gone in order, as far as story goes, save for 0. I played the Kiwami games rather than the first two actual games, them 3, 4, 5, and then 0, kinda going off its release date. I'm on 6 now, and LAD would be next. I'd suggested I'd skip right to Pirates, but have a feeling I will be lost on some things, bc it is in Hawaii, so obviously ties into the overall storyline, and I think maybe I'd enjoy it more if I understood everything that happened leading up to it.
I took a detour between 4 and 5 to play Judgment, and that is my favorite game that this studio has made, it was excellent, even relative to the Yakuza/LAD games. I've got Lost Judgment I still need to play, and LAD Ishin, so no telling which direction I will go next.
I've actually kinda put 6 down and am playing Trek to Yomi, which is probably the most beautiful game I've ever played. One of our Sherdog buds says it is art, and I kinda agree.