I've tried it, I've tried also deckadance, but finally I choose Cross and the main reason is for the quality of the scratch engine, I do for the most part of my time scratch and also the mix for me is fulfilled of cut, backspin, scratch, and so on...and after a comparison I found in Cross the best quality, very slow drags and hi-speed chirp don't miss a hit, for example deckadence, when slow dragging, sometime it doesn't catch the timecode and skip. In Virtual DJ I don't like the sound of the scratch, seems a little too much digital.
I have (somewhere) a registration of a simple and easy scratch routine made with DVS 6, done five minutes after first installation on a cheap PC, with a crappy audio card but good.
So to conclude and summarize, I choose Cross because of the sound quality and also because is not linked to a particular piece of software.
And you? how is going your experience with Cross le?