Native Instruments Traktor S2 MK3

I use this to mainly have quick fun by myself or with my friends, without the inconvenience of carrying or wiring mixers, turntables and etc. For this task or for learning basics of DJ-ing this is a very good controller. It is really well built and feels sturdy. All the buttons and knobs feel really good and clicky. I only don't like the hotques/sample buttons at the bottom, but lets say that they are OK. Few other things that I find annoying:
- Most of the people have said this already, but yeah - why removing the effects knobs, when the MK2 already has it. It can get quite boring using only the mixer FX ( you can use only 1 for each channel). You could use custom mappings for free, which are not ideal or invest in a Kontrol X1 (which is not so cheap) to manage this. Also there is not an IN/OUT buttons for the loops, but you could do a mapping in Traktor for this pretty easily.
- The pitch slider is small and beatmatching could be quite hard. Set this in your software to +/- 8% and it will be better.
- The sound coming from this is somewhat on the quieter side. Both from master and monitor
- Very limited I/O. Only 1/8" jack for the headphones, instead of the bigger more professional 1/4". Also on the back there are only unbalanced outputs (RCA) and AUX, no XLR. I recommend using XLR to RCA cable for connecting studio monitors. The DAC is fine, though. The sound is nice, just a little bit quiet.

All in all, I don't regret the purchase. I totally knew what I was getting when ordering. If you need something more serious you should look elsewhere (and invest more).

I Have been a traktor pro user for years using a variety of timecode and midi controller setups. My audio 8 and s2 mk1 were starting to have issues after years of use so i was looking at replacing both units.

When Traktor pro 3 was announced the feature that really got my attention was that you no longer needed a native instruments audio interface to use timecode vinyl. When the s2 mk3 was announced as being bundled with 2 licenses for a full version of traktor pro 3 with timecode functionality this seemed like a great value bundle.

Controller:

Simple non cluttered layout, huge improvement with the Jog wheels, larger and very responsive. fun for basic scratching. non symmetrical deck layout is a nice touch. RGB performance pads give great visual feedback for hotcues and loops. all knobs, faders and buttons seem to be where you would expect to find them, pitch control surpisingly accurate for the size.

The mixer effects section and lack of separate effects units/controls at the top has had mixed reviews, my original plan was to simply re map if needed, and thats what i did. If you have a good understanding of mapping and modifiers then you can tweak the effects section to your own preference. works well with other midi controllers as well, when used with my zomo mc1000 ive every control i'm going to need.

Software:

Great software, has worked flawlessly with different setups for me, Timecode vinyl works with my american audio versaport and my m audio connectiv, low latencey with both interfaces.

if you have an existing audio interface that you will be using instead of the s2 then you can use it with windows 7 and just use the s2 as a midi device, just make sure your interface has a headphone monitor

Summary:
huge value for money without a cheap looking product. Not being locked into native instruments audio interfaces for vinyl control is a welcome new feature! Reading the manual is advised to get the most out of the software.