[Aqua Knight]

Quite lame way to get Ichigo's powers back. I mean he had long Fullbring training only to lose this power instantly and then get Shinigami powers so quickly.
We still don't know if Ichigo's new Shinigami powers are permanent or temporary.

Aside from that introducing new characters and devote half/full chapter before their death/defeat was lame.

Very weak arc even compared to Arrancar one, where at least there was some logic - story progressing to war and Aizen's defeat.