Quite a bit of fun cause let's face it, who wouldn't want to be a ninja with the power to control the Nine Tails Fox?
The story was only so-so. It didn't wow me which would have been nice but it wasn't so unforgettable that you didn't enjoy it. It was just kind of there. It was interesting as to how they brought about a fight will all the other characters that you've come to know and love throughout the entire Naruto series so you don't miss out on anything there. And the combat system was fun too.
You can actually set yourself up to workout your version of Naruto to do multiple different things. It could be focused towards charging up the Kyubi to be used in almost every battle and multiple times in longer ones. Or you can emphasis jutsu abilities or physical ones. The level of customization was slim but still there.
All an all, a good RPG is you are a fan of Naruto. Not so much if your not.