Do you want me to answer that? My main(there are several in truth) problem is the characters.
Naruto: I don't care that he has been alone for his childhood, or whatever bullshit, superficial, explanation we get to his behaviour. The guy/teen/pre-teen/asshole is a huge dickwad. He is an immature jerkoff who is simply unable to shut his damn mouth for five minutes.
Sakura: She is a *****. It is that simple. For no reason she hates Naruto, even though he saves her life numerous times, starting at the very beginning. Consistently gives the guy flak for equally no reason, and is in truth as immature as Naruto in her behaviour. In love with Sasuke even though the character is a completely joke and waste of time, and acts as if he resents her.
Sasuke: The guy is a douchebag. He's an emo-cutter, only instead of cutting himself he turns evil and starts cutting his family. The guy acts like a fucking cockbag, regardless of the circumstances, and his "I'm better than you" attitude is annoying as hell.
There is no problem with the "Inexperienced, hardly talented"-lead character, the "I'm mostly here to be a *****"-sidekick female character or the "I'm the nemesis of the lead and act as if I harbour deep-seated hatred towards him, even though I regard him as a friend and colleague"-villian.
But the characters are HUMONGOUSLY ANNOYING to watch interact, behave and fight. They are like fucking preteens with their sexual tension and poor melodrama. It's a joke. I don't want to waste my time watching 10-year-olds fight amongst themselves while being inexplicably empowered with some sick ninja-shit.