I originally bought it because I wanted to DJ on an iPad, but quickly learnt that I'd be better off using a proper laptop.
I used it with Traktor for ~10 hours before realizing I don't need the mobile compatiblity that the S3 has, and soon upgraded to the S4. Now I no longer have a use for the S3.
It is in flawless condition, with zero cosmetic imperfections. It's built extremely well and comes with its original packaging, power adapter and USB-B cable.
I contacted Native Instruments and despite there normally being a 60-day window to transfer software ownership, they managed to remove the license from my account, meaning it can be claimed again using the hardware-serial on the back of the controller. No need for a license code! Just enter the code and claim the software.
I have this for sale on Tutti.ch and Facebook Marketplace for a lower cost. Feel free to ask me any questions!