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).

The hardware is good, well built and relatively easy to use, probably comparable to most other suchlike dj controllers of a respectable brand (although I can't compare). Setting up and connecting to a laptop is extremely easy and presents no problems. The lit pads make it possible to work in a dark environment. No comments on the effect as I don't use them.

The software, however, is outdated as - contrary to other software - it does not allow to create flexible or 'elastic' beat grids. Beat matching using the sync button is no problem as long as you play electronic music that comes out of a box, but with 'real' music it's almost impossible. There is a cumbersome procedure to reset the beat, but with music with lost of tempo changes, you need to redefine the 'beatmarkers' every few bars. Another option is to use other software to 'correct' the variations in tempo of the tracks, but actually that's taking the soul out of the music.

I haven't used the controller for quite a while now and only use it occasionally. It is possible that the new Traktor Pro 3 provides a method for flexible beat grids, I only used Pro 2. Anyway, if you're interested in pre-80s music, or in any music performed by real musicians, make sure to check this before you buy this Traktor! If I remember well, users have been asking for this elementary option included in almost all other dj-software for many years, but somehow the people at Native are very slow to provide this basic function.

It's an entry-level controller, no doubt about it. Native Instruments doesn't try to hide it and I knew what I was getting when I bought it.
You get some Native Instruments interesting features embedded in it (the preset configurable effects) but nothing too fancy. The price you pay is fair.
The sound quality is average and the output is about 90dB... (my S4 MK2 is considerably better AND louder)
It has only one RCA unbalanced output and an AUX (audio coming from this output is considerably lower) and that's enough for gigs where you have to carry a lot of gear and can't take a huge controller with you.
For me, it's an inexpensive and very portable way to move around from club to club without too much hassle. I get the S4 basics (effects, sized loops, flux, etc) without the extra weight.
If you're looking for something that does the job for a really low price, this is the way to go.