Never heard of those speakers but they look like they should provide some serious firepower!
Th symmetrical driver array in particular catches my eye. I would expect that to help produce improved coherency and imaging in most rooms for a speaker that size?
Also, I have read these are constructed using Baltic Birch which I suspect makes these one of the larger and more serious designs out there I have seen using that particular wood, which seemingly has a great rap for use in building speakers.
Gotta sound pretty darn good I would guess!
Do you have any good source material to play on that R2R deck? That could be the "Pièce de résistance".