Atm the quality is really really bad. I don't read the manga, but I know from ppl saying how awesome it is and just because I trust that it will be awesome, the next arc is hopefully gonna be amazing. Lots of ppl said they stopped after chouji in the last arc, but I think the whole sasuke chase was one of the best things in naruto. It was when the whole thing started to go serious, shows a sense of maturity in all the genin.. makes it seem like they're all growing up and starting to understand how serious missions really are. Then Sasuke vs Naruto, well 133 was just the best episode ever. So having filler directly after such an amazing episode... This is my theory into why everyone.. REALLY.. hates the filler atm. Maybe it wouldn't be so bad if naruto hadn't gotten so interesting all of a sudden. When I think about it, the Orochimaru castle filler wasn't that bad. The animation was pretty good towards the later episodes. They could have done so much with the Butterfly girl thing, that was an interesting idea. however the stupid brothers and Mitzki, really is just the worst thing ever.
But when the next arc starts we can all just delete these filler and forget about them completely. It's a pity they added stuff that wasn't filler into them unlike the tea saga, because then you really could just delete them and no one would ever notice if you showed it to someone new.