After 38 hours, I finally rolled credits on this game and was completely stunned with the Mach-1 speed of the story in the last 2 chapters. The final chapter, boss battle, music and impressive length cinematic that tied up all of the narrative loose ends (because damn there are a lot of character arks) was highly enjoyable, though I cheese'd the game a bit by using weapons and having such high attack/heat stats against the final boss.
All in all, it was an amazing time and no time wasted whatsoever. Anyone who enjoyed Yazuka 0 and Yakuza Kiwami 1 will enjoy this for all of the unique aspects that the series provides.