Is it as good as Yakuza 0? No, because we don't get Majima as a character, and thus the world feels smaller, combat less varied, etc. The comparison is unfair, because 0 is built from the ground up for modern generation consoles while Kiwami is the remake of a PS2 era game. Still, that was my baseline for a game and Kiwami did, in theory, come later, so...
I did find the Majima part kinda tiresome after he became very tanky and the events near a few places I used to go become too frequent.
Overall, very fun, long live this series