It scratches that Yakuza itch, but it's still a side game at the end of the day.
Side stories are basically just cutscene -> fight, they're lacking those special, memorable moments the other games had.
Combat is good as always, agent style is fun to use but I personally found 3/4 gadgets mostly useless.
Overall I enjoyed it, but it's clearly made for the fans, not a general audience, so keep that in mind