Like many other reviewers, I started reading naruto a 10 years ago. It was one of my first shonen and I really enjoyed it. If I stay short, 2/3 of the manga is good, sometime really good but the end is awful. I mean it's really really bad. It's litterally hundreth of chapters for a single battle that never end. And it's not even interesting. You already know who is gonna win so skip to the last chapter. Everytime Naruto seems on the verge of death he got healed and become stronger ...
SPOILER : The conflict resolution between naruto and sasuke is just plain stupid. Like really really stupid. I'm kinda happy that it finally happened, but that's stupid.

If I give a 6 for that manga it's mainly because of nostalgia and because the first part was good (at least in my memories). But If I had to rate it for the last 2 hundred chapters, I would give it a 2/10.
There other reason I give it a 6 and not a lower note is the end (the final chapter actually). It made me happy and I didn't feel like I was raped by Kishimoto. But it was really easy to guess that end.
Nevertheless I would a better conclusion. More chapters on a "normal life" with Naruto. Like parties in One Piece. A breather.

The art was pretty good at first but really lazy at the end so it's mixed. The action is often confused.

Well I'm happy that I finally finished that manga (I'm actually more happy to put it in the completed section than actually reading it)