I got mine yesterday from AcousticSoundDesigns, no issues with shipping or delays. However mine wasn't the elusive black model.
In both subjective and semi-objective testing, it's good to about 24Hz +/-6db. I'm not set up to do anechoic testing, and I've got a room with several harmonic issues. The sine wave sweep on REW shows a small bump around 26Hz and then a steep falloff starting at 24. I also get a pretty good 6db "boom" at 30Hz, but I think that's my room. Also, from 20-26Hz there is some pretty noticable port noise. At 80db it will blow down plastic cups 6 feet away! I'm getting the best results in a corner with the port a couple inches flat from a wall to tame the air velocity out of there. That also took down the bump at 26 Hz.
In HT listening the only time I heard port noise was in Nemo when Darla taps the glass, but it was minor and even harder to notice considering it sounded like someone was exploding munitions inside my head. (as one of the fish in the tank said, "Too loud! Too loud for me!")
Music has been definitely opened up. I never knew the rolling thunder noise ran through the entire opening guitar refrain on Dire Straits "Brothers in Arms" :-)
So far I'm *very* impressed for $229 w/shipping.