As a guitarist, I thought this may be a fun little app for the DS which might also come in useful for recording interesting sounds or jotting down ideas. It is not.
For any non musicians, this is possibly of even less interest and it probably wouldn't hold anyone's attention for more than five minutes. There's just a basic lack of fun or even hint of a challenge about the whole thing.
There is only one guitar sound to choose from - a rather thin, acoustic type of tone - although you can add FX and tweak the tone, these are limited to just two at a time and not particularly pleasing either.
The tag line invites you to play and sing and the literature raves about the use of the microphone and the record feature, but it's really a basic midi recorder - nothing that goes into the mic is actually recorded, so what's the point of using it at all?
The DS system offers huge of opportunities for good music games/apps - so when are we going to see one?