This series is good until the end of the big exam, at that point it all starts to go down hill.
The fights are just so sad and lame, almost nothing happens for, almost literally 40-50 chapters at a time. Where this story once drew me in, like another person I have purchased a LOT of the Naruto manga... and I can't even reread it anymore for lack of story. Kishimoto needs to take a break, and come back with a way to end this series. The story is also named wrong, it revolves completely around the Sharingan and the character Sasuke, who the main character Naruto loves, as well as every other person who has ever met him.. it appears.
Overall, so much potential that was lost due to the desire to milk this, and avoid having to possibly move to another series where he could expand his skill in some direction. At least his brother knew to end his series, he didn't end it well, but he ended it.
The fans have been burned by this series enough, many "fans" are just waiting for the thing to end to come back and read the last few chapters to see it go down, which is what I am doing. Every once in a while I read a few chapters here and there, just to see nothing has happened.
To people like Orange_Beast who say people didn't read it, and that is why they find it boring... you might want to read the manga as it appears you have only watched the anime. It is sort of obvious from your post where you say he says "Believe it!" and talk about filler arcs. Read the manga before commenting please, vote for the anime at an anime review site, not manga.