Man have you poor guys been so overwhelmed by crappy fillers that you'll praise anything that seems half decent. Honestly I'm still on the fence about this one. There seem to be some interesting ideas at work here but whether or not we'll see them coagulate into something decent is still up the air. If you break down all of the other filler arcs they all sound like good ideas.
Infiltrating Orchimaro's underground mansion.
Mizuki's return from ninja prison and an explanation of his past as well detailing his relationship with Iruka.
Meeting one of the other seven legendary mist swords man.
They all sound good on paper but I don't think I need to remind any of you how they all turned out.