I use a Traktor Z2, two X1;s and two F1's, in my opinion you can do everything this can with my combination,
It's not at all intuitive and has to be learnt, which of course you have to do with other controllers, but this is harder.Push the side buttons and it moves around.
I know a lot will not like my opinion, but my money could have been better spent on something else.
The build quality can't be faulted.