The first volume is good. Stop when you get to the end of it.
The first volume is great, but starts to drop in quality near the end. The second volume, on the other hand, jumps the shark hard. Naruto turns super saiyan (complete with green eyes, a distinct lack of whisker-marks, flight, a glowing golden aura, and a death ball) using a magic sword, an OC that was mentioned near the end of part one completely steals the story while being horrifyingly inconsistent in his characterization, and Orochimaru is killed off by an Ass Pull
. I didn't even bother to read the third volume.