SaM (stoneageman) got his a few days ago. Not sure how he got it that early though. Maybe they released it early in UK?
Looking good so far. I can't get mine till Friday. Looks like it's gonna produce about 124k boinc points/day (868k WCG points). Temps and power draws also looking good.
~450 watts running MCM and cpu temps were around 66C. He was using the Cooler Master ML360 RGB TR4 AIO with an ambient of 25C. But the CPU clock only ran at 3ghz (he had it on auto)
From the screenshots, looks like the 3990X finish a MCM WU in 3.5 hours with all 128 threads running. My 3970X ran 2.5 hours/wu at 4ghz and draws almost the same wattages. (420)

Z, you're gonna get one?