Obviously lots of effort, just not any fun.
The author obviously put a lot of effort into making this, and I congratulate that. But the tracks were poorly chosen, and some of the buttons didn't work as they should. The fader didn't do anything. Good idea, poorly executed. Tweak it some more, use some different music, and I think you'll have a nice hit on your hands. Althought it could never possibly compare to DJ Nights ( http://djnights.gameloft.com/c ountry/ca_eng/ ) unfortunately, unless you add some sort of career aspect to it.