I used one at a mates house and it worked fine and matched the occasional kick and most snares pretty accurately although I don't reckon it'd work with mad jungle too well.
Ya man why do u want one of those??? I mean to mess around with at home is all good and fun alongside of having a real mixer that u make mixes with and what not ....but to spin on one all the time is a little different in my opinion. It matches the beats for you...wheres the fun in that?