I flew out of London to Stockholm and back on Friday to pick up my Jupiter. It's happily spinning now, hashing on average at about 530 GH/s. It fluctuates a bit between 515 and 545.
I had trouble setting it up at first, and panicked for a moment when I thought the device was faulty when lights didn't come on -- although the psu was connected correctly and the fans started spinning. When I opened up the box, the problem was visible -- the little linux device (simpler than a Rasb pi) was loose!
Once that was pressed down, problem solved. Big relief.