By far the most versatile and professional Midi DJ controller I have come across. Can take any input and throw to any output cable type imaginable(Including XLR). Works as a standalone mixer without computer interface. The pure metal construction makes it a tank and you have all the knobs you will ever need. Use with Traktor otherwise you're wasting 75% of the decks functionality.
Bought one on craigslist for a pretty good price at the time. I love it. I've got custom knobs on it from DJ TechTools. The only con is that all the buttons, knobs, and slides are a little cramped. Works perfectly for me though and I don't have good hand-eye coordination.
This is what i use when I have gigs at small club or special events. Does wonders if you know how to properly use it. I even use this to record most of my mixes on soundcloud. (soundcloud.com/geelano)