I have found this stupid review:
http://www.musicradar.com/gear/all/computers-software/virtual-instruments/wivi-v2-191837/review

I say stupid, because the 'reviewer' say that the sounds are passable! he whines about the price and the fact that 'using a breath controller require as much expertise as real players'.

What a stupid review....first off, I think the sound quality is amazing. The price reflects what is being bought. It's not too expensive for what it is. And the breath controller in conjuction with a keyboard seems a child's play. These guys aren't even willing to blow air into a breath controllers? Total wussies.....

My prediction is that this product will soon overshadow the best sample libraries available. Maybe not all of them (some sample libraries offer instruments that will not be found on any other product, like Eastwest's SILK, for example). But still....WIVI seems truly groundbreaking.