I have one too, and i LOVE it. I sometimes use it along with my live rig to DJ breaks and line dances. The third input works great with my iPad and I have everything I need for requests. I use 2 USB drives - one has all fast dances, the other has slow dances ... same with the CDs - that way in case I have a brain freeze - I can quick go to the next tune without thinking of exactly WHAT song I need ... I always believed that it's better to get the right KIND of song than a specific song if the dance floor is filled.
Good luck with that unit - it's very versatile and roadworthy.