Do you have any measurements? It seems to me they were declared "Pretty cool" a bit too easy given the astronomical price...
They can be cool even if price is astronomical.... I would say a Königsegg CCX can be quite cool, even if price is astronomical
Well, the Wisdom subs, they can at least play loud... very very very loud, looking at specs for the mentioned STS subs:
Frequency response 20Hz – 80 Hz ± 2dB relative to the target curve
Impedance 4 ohms
Sensitivity 101 dB / 2.83V / 1m
Power handling, peak 5000W
Maximum SPL 130dB / 20Hz / 1m
Shipping weight 350 lbs. (159 kg)
And they don't seem to be able to make up their mind.... they speak higly about benefits of line source speakers but still offer point source speakers too, so they seem to play all sides... just to be safe