I just caught the midnight screening at the Egyptian (aka The Way All Sundance Horror/Thriller Flicks Must Be Watched). No Q&A whatsoever, sadly, but the film spoke for itself.
Enjoyed Ryan's review, and would go as high as an 8.5 on my own 10-point scale. "Cube" meets the "Saw" series indeed, but superior to the first by a few inches and to the latter by a mile.