As far as I can tell, this doesn't do some of what it's supposed to. It plays segments of the audio file and the "Position-X" mode seems to work OK, but I can't see any sign that it does anything based on analysis of the signal (ie concatenative synthesis) as it claims. Using multiple different audio files I tried changing the range in Energy, Noisiness and Brightness modes and I can't see or hear any correlation between the level of these parameters and the selection of segments. This is the functionality I bought it for, and as far as I can tell it's simply not doing it; it seems just to select segments pretty much at random regardless of how you set the range. The manual is thin with very little explanation, so it's hard to tell what it's supposed to do, but I'm just not seeing evidence of the smart analysis-based functionality I expected.
Then there's the "R Range" control which the manual says is "Pitch shift randomization around the Rate factor". It doesn't seem to work at all for me - after many tests on different material with different settings, I never got any random variation in the pitch.
And it crashes a fair bit (I'm using the MacOS version on Mojave).
I hope Le Sound will release an upgrade which addresses all this. The concept is a great one: concatenative synthesis is a powerful technique which I've seen some great demos of.