I actually quite liked what they did with the Fullbringer arc. It was a breath of fresh air. It had an actual build up, and the way everyone had turned on Ichigo cause of that dude's fullbring. It was making me pretty tense. Even the fights were pretty good and had a bit of psychology to it. This current arc is a thrown together mess. Sad thing is, he spent 5 weeks planning this arc :/
I honestly think he's just burned out on his own creation. This entire final arc feels more like a hastily thrown together work of tying up loose ends than an actual planned, satisfying story ender.