I heard these loudspeakers in prototype form about 8 months ago and they sound great even then.
Song demoed some of his products at the last TAAS meeting, however because the acoustics in the meeting room was so bad, the demonstration did not give an indication of how good his equipment can actually sound.
Hopefully we can tame the acoustics of the meeting room for future meetings. I have a large set of acoustic panels that I would be willing to donate for the cause.