Anyone hear the Von Schweikert DB-99?

Does anyone own or heard this speaker? If so, please give me your impressions.

Also, what are the sonic benefits (if any) in a high efficency speaker over regular efficency?

The color you saw on display, you mentioned burgundy.
Is that the same as Corvette red on the website?
I just got my pair a week back. To me, at least, they sounded very similar to the VR4sr out of the box. I think the DB99s are back-logged. I had to wait closer to 8 weeks before i got my pair.
I had the opportunity to hear both at a dealer not too long ago. I assure you that after the 99s break in, they will be faaaar better than the VR4 Sr.