With Pioneer dj being sold to they can focus on car audio, you all should change your vote to the S4 Mrk 2. Biggest names in the biz ( zedd, porter .. ect) now are already changing over for safety and future.
EDIT: Pioneer DJ has been spun off from Pioneer. A private equity firm KKR has acquired it. DJTechTools speculate business will continue as usual at Pioneer DJ.
They are but you will have to do some manual mapping. You could use DJtechtools and may find mappings for your software. May I ask which one you would be using specifically?
personally i wish the sx wins, mainly because pioneer is a great company that makes quality dj gear and it would be great to not spend 1 grand on this and get really great quality for however much it is going to be.
I am glad this vote was started. I have been looking for one of these. I am hoping there is more love for the VCI-400 since there isn't any limitations on software you can use.
Updated the description a bit, please re-read and look over the options again. Launchpad, Push, and other such control pads weren't supposed to be part of this, this was supposed to be purely a list of DDJ all-in-one controllers (decks/mixer/sampler/fx etc) or controllers w/ decks.