[I read this up to chapter 339; Haven't gone past that point yet]
I started reading this manga 3 or 4 years ago. When I had started reading it, I loved it. I thought it was an ingenious idea for a story, and by the time the first arc was done, I was practically head over heals in love with it.
I was attached to this manga for a few things. The 4 main characters Sasuke, Kakashi, Sakura & Naruto all had something special about them (Minus Sakura, but I thought she was going to be developed later) as they seemed all unique in their own way. Different attitudes, different perspectives in their progression, different fighting styles, different and interesting pasts. But the one thing that really got me hooked on to this was the Ninja aspect of the story. It had to be some of the best ninja lecture I had ever read. It was great. The life of a ninja, a ninja's role, how a ninja must not have emotions on a battle field, fighting as a ninja. That was all so compelling and interesting.
...And then came the Chuunin exam arc, where everything came crumbling down with the introduction of Gaara and company. This is when Naruto really started to become bad. This is when the ninja aspect, the aspect that really made me love this series, became to fade away. It wasn't about ninjas anymore, it was about who was the biggest, baddest monster.
The rest of the series just got worst and worst by the arc.
As it got to part two, nothing much changed really. They had improved Sakura slightly... But she's still as useless as previously was except that she knows how to heal people now. Yay!
So I ask myself... Why do I continue reading this? Why do I always have this false hope that maybe the series will go on the right path? I don't know, but I almost pray to see if it ever will be back to what it once was.
But until then, this is just another decent story, ruined by the typical clichéd Shounen aspects of who can power-up the most.
[edit] And to add to that, the ratings this series gets is ludicrous. This has to be the most over-rated series of all time, above the DBZ's and Bleach's of this world.