i never liked the look of serato for a start, secondly I have an X1 which works straight out of the box with traktor. the deal maker was the fact that store dj had them on special for $699, with a 5yr warranty, which is only $30-odd more than buying it from NI's website. If DJ warehouse had a trade in SL1 in stock on saturday, I would now be using serato. Since they are $500, I figured if it was shit, I wouldn't lose to much if I was to sell it on again. anyway, someone buy my traktor pro and audio 2!!!