I did some research on these since they looked like an attractive alternative to the other suspensions for our cars. It turns out that these coils have been sold under various names and are available for a number of cars ranging from Scions and Subarus to Audis and BMWs. The other names I found for these coils include "STD" and "Kido Racing" if you want to find more information.
Although these coils are sold for many platforms, the only real review I found was from a Scion xB owner who liked them. Most other posts related to these coils were from people trying to find out more information on them. For all I know, they could be great, but it seems like a lot of people are sticking with the brand name suspensions.