The 'Thousand Year Blood War' Arc has some decent moments. I mean 95% of the 'hyped' reveals that people were waiting for have happened. Some were bad, others were pretty cool.
The writing overall though is just an endless series of Kubo-Tite-Brand retcons and ass-pulls. Nothing really makes much sense at all. The logic behind character motivations and powerups have been increasingly contrived and ridiculous, to the point where they're virtually self-parody.
The writing has been on the wall for the ending happening for a while, but I will say I'm glad it's soon. The manga has definitely run its course. I do hope he at least tries to wrap things up with some closure on character arcs though. It would be very Kubo to not bother, but I hope he has enough pride in the work to do at least that.