Its amazing to see the amount of interest in people wanting to audition or hear these speakers now. There have been a few other threads on different forums and never have I seen this level of interest in hearing the speakers. I think the difficulty in auditioning the speakers is two fold, one there are not that many pairs of the speakers out there, and two the people who own them are spending their time listening to music instead of on the forums looking for better sound.
One challenge in evaluating them is that for those of us that do have them, the sub configurations and setups are for the most part totally unique and simply make the best of available listening spaces. Bass integration is very important so mileage definitely varies.
I chose to hear them at Earl's place, which demonstrates the whole approach at its best (CD speakers, multi-sub, room design, multi-channel, HT setup). He was very gracious and accommodating, tolerated my eclectic music tastes, and thoughtfully answered every question I fired at him. As someone who typically studies things to death, in this case I made the decision and wrote the deposit check that day.
Really, for less than the cost of a modest set of fancy wires, you may be able to just fly there or take a road trip and experience them for yourself.