I'm never a big fan of Naruto movies or anime, especially when the manga quality was going downhill too.
However, I have to admit that this is the best installment of the series. At least it brought me some emotion at the end.
The story is still straightforward as you may expect but not as stupid as other Naruto movies/fillers. At least the final doesn't appear to be super overpowered but finally get crushed completely by Naruto (he is still crushed by Naruto but after being nerfed by a third party).
This movie doesn't rely much on dazzling visual effects like the previous Shippuden movies so some brainless people may find that disappointing.
I would normally rate this 7 but just to encourage people to appreciate this more than other movies, I give an 8.