Current S4 owner and i have gotten to play around with it and from what i see the S4 Beats the MC6000 but the MC3000 beats the S2.
S4 supports timecode…nice easy layout and Fully integrated for TP2
The MC6000 is a great unit and with the ability to be a standalone mixer is GREAT. As well the MC6000 has boothout…but in most situations u can usually use the boothout on the house Mixer.
Now the flaws. the MC6000 is super cramped, and i mean super cramped. This was a deal breaker for me as i have a pretty fast paced work flow and the chance of accidently hitting the wrong thing increases 10 fold.
The unit doesnt have 1:1 hardware to software
Doesnt support timecode for people who want to scratch.
Have to use shift modifers to access some of the abilities in Traktor
S4 flaws: Modding the built in mapping is a bit painful…so there is a limited amount you can customize unless you enter midi mode and then you have to remap everything, thankfully the mapping provided works flawlessly
Some people have had problems with sound dropping on PCs but that can easily be fixed with optimization
Plastic construction on top…while very durable…doesnt match then Tank like construction of the MC6000
Now going towards a 2 channel mixer the MC3000 is hands down better than the S2 Phil has some good reviews as to why