As far as Naruto games go, this is the most fulfilling.
To get the good out of the way first:
This game is simply visually stunning. The best cell-shading I've ever seen. The music comes packaged from the anime and usually that's a pretty bad choice but I must say Ubisoft utilized it well. The chuunin-exams, especially the forest of death was very very well done. As much as they cut out of the story it was done in such a way that you weren't feeling all that lost although if you hadn't watched the anime or read the manga you'd be wondering why you were by yourself (Naruto) the whole time.
Now for the bad:
The flow of the game is somewhat broken. I beat the meat of the game in less than 10 hours, so if you're curious as to how this really plays you can probably make by with renting it for a week. What Ubisoft lacked for this game was narration. Hopefully if they continue with the series they'll add it in or at least cut the anime scenes together with the gameplay to make it understandable. At times I was asking myself, "What's going on?" I'm not sure if they had a limit as to how many minutes of photage they could use but it was really badly cut together and even though the anime scenes were supposed to piece everything together it just let you down by trying to piece together what exactly went on and what you are to do now.
The controls aren't too bad but I would have liked to have the block button on the top of the control-pad instead of being the B button. That fraction of a second it takes to move the thumb from the x or y button (attacking buttons) while you're stringing a combo and realize you need to block all of a sudden is really stressful. Having it on the top for your index finger to press would make a lot more sense. Jutsu's are reaaaally difficult to pull off, especially the highest-level ones. In order to do it you have to use your combo's to knock the opponent down. I have yet to set off a level-3 jutsu against the computer. On top of just getting them off, they're interactive; meaning the opponent has a chance to dodge your attacks even after you spent your chakra to do the move.
I haven't really spent a lot of time online but when I tried to setup a ranked match it wouldn't go through.
Overall this Naruto game has to have been the most ambitious and to an extent it fulfilled what it set out to do - introduce those who have yet to play a Naruto game or even watch the show. As far as canon goes, it's far from being true to the manga and anime (it even changes the story in some parts) and even Ubisoft's target audience of newcomers to the series will be left wondering what just happened. To put it simply, this game wets your whistle but it's far from quenching your thirst.