I just watched the episode. I liked parts of it but I have to admit too many flashbacks of things we already know is, especially in an whole episode, is incredibly boring
and annoying to me. I can't believe the next episode is going to be the same. Pierrot is already losing my attention. And agreed the animation was lazy and badly done but
unfortunately, they do this often. The last few canon episodes were way better in quality.
I'm actually really angry about this filler episodes. Can't they just go to the war already? We've been waiting forever

.
As for the OP, I didn't really like it. The Japanese singer who was doing it did not have a great voice to me, but some scenes were alright(Neji and Hinata team up. Looked cool.)
The ES was much better and I really like it. Seeing Naruto fight Sasuke in Sage Mode was great and Sakura looked lovely in that dress

. But then Hinata showed up out of
no where when she wasn't even needed

. Pierrot just had to add Hinata in the mix didn't they? And of course it just had to be pairing-related. NaruHina and SasuSaku.
That part annoyed me too. But I guess to be fair, the Hinata fans needed that after the slap in the face that was 235, and anything involving Hinata just increases popularity. They had to
put in there
precious Hinata-chan because they love her so much when really she was incredibly out of place in it and served no true purpose other then just...being there.