I looked at the videos on youtube after seeing the original post and it sold me so I went and picked it up today. The game guitar hero is what originally convienced me to take up guitar in the first place. After I got into the real thing nobody could talk me into play guitar hero anymore, I would always say if it were a real guitar then I would play it hahhaa.
Well after messing with it for a few hours I like it. It seems the better you do the harder the songs become or maybe it's just more 'complete'.