I have to say, although it is a little easy for the first half or so of it, this game is fantastic.
Good graphics, good voice acting (Except at the beginning when somehow they talk too fast) the video clips are great and, personally, I think this is one of the most under rated games for the Nintendo DS.
I haven't heard much about it, but since I got it...I've had a hard time coming off playing it.
It's definitely worth buying, will give you hours of fun, especially if you try to play it and get all 108 companions too.
My favourite DS game that I've tried so far.