Conclusion: The Numark DJ to go is a good unit. Works fine, interfaces well even wit my older Dell latitude. The toggle wheels are a bit touchy. My sausage fingers touch the wheels by mistake making the song 'skip'. Would be nice if you could disable them if you don't need them. The program it comes with is a 'lite' version and doesn't offer much for features. It doesn't create playlists or continue on to the next song once the first is over.
Conclusion: This thing is simplicity in its most elegant form. With the ability to use two virtual decks on a single laptop, a smooth and seamless performance can be maintained. The VirtualDj Lite software that came with the unit is Ok but I would have paid considerably more for the full version. The full version of VirtualDj is probably the best on the market in my opinion. I have used many but I won't go into details on those. The hardware, although, is another story.