Got mine up here in Canada on the 16th!
Just ran MCACC on it so far and haven't had much of a chance to tweak it (waiting for an external soundcard to run REW so I can adjust the PEQ).
So far, I'm really impressed with its musicality! Had a fellow audiophile over on the W/E to listen- he has a set of high-end Tetra 505 speakers and is thinking of adding a SB13-Ultra to his set-up. The ultra low end bass and out-put really blew him away.
Haven't had much other chance yet to play some of the reference material from my Blu-rays yet. Bought Prometheus to view for my first full movie experience with this baby!
Only issue so far are 4 shiny marks on the grill which I think is from rubbing on the foam packing. Noticeable on the flat black finish.