I heard the 12" model briefly this weekend. It is a good sub for the price. I heard it in a relatively large 20x15 room, open to a large kitchen and it had some oomph to it. It did not have quite the tactile feel of my former PB-10 in a similar sized space, but output was close and the sub is about half the size of the PB-10 (but the PB-10 costs less and goes lower). I'm going to get a better listen to it either this weekend or the next when I go back to calibrate and dial in this system. I'll post a better impression once I've spent some time with it and run some additional material on it.
I also heard the deal would not last from my buddy, which is what he was told when he ordered it, so those who are interested better get one while they last.