#8 is the best one yet. Most of the others are too lo-fi for my taste, but #8 is easily worth the £3 (~5 bucks).
[UPDATE]
Got it, playing with it now. I was surprised to find 9 instruments in there, all nice-sounding and most will be usable. Especially the first one, "RR NanoMod 8 FM.nki", a distorted organ-ish sound with a cool pluck attack.
What you've basically got are two waveforms, one more or less percussive and the other pad-like, which is looped for infinite sustain. You can then set the relative levels and tone of each of these components, plus the overall envelope, to get percussive or smooth sounds or variations in between. Kontakt's built-in saturator, distortion, convolution, delay, reverb and chorus effects are controlled by the UI knobs. The instruments are open for tweaking, so you also have the option of adding, say, a flanger if you want.
post edited by bitflipper - 2014/10/29 10:49:54