I chose it for ease of use (same engine as Virtual DJ) for professional use.

I use a Mac Book 2GHZ dual core, a platinum ICDX that serves as a controller and an external USB sound card Terratec to have no latency.

Everything is connected to a Pioneer DJM 600 for my own PFL headphone directly to the mixer.

GETTING STARTED

Very easy to install and extremely easy to handle.
Manual, but a fair enough.
The software is entirely in French.

SUITABILITY/PERFORMANCE

I tested it with a MAC 2GHZ Dual Core, no slowdown. Incredible processing speed.

Works great with a good external sound card to reduce latency.

No bug found after several hours of use on stage.

OVERALL OPINION

Excellent product now available on Mac and PC (version 4.3)
Ability to retrieve all extensions of virtual DJ
Controllable with all the time controllers including the Numark ICDX.
I find it very easy to handle.
Only the default master tempo, not great over 3%