I have not heard them and I'm sure they are amazing speakers. I noticed at CES (pics) they had 60k worth of MIT speaker cables connected to them (as they always do), that matters in a big way. I Have heard MIT's upper tier cables and they will do some pretty damn amazing stuff, enough to put your jaw on the floor. Smart move by the Magico folks. The room will get big praise but few will note that the cables had a large influence.
I love the look of the Q series and would love to hear them someday.