Has he even 'offered' someone like Philima1957 or Longsnowsm (did A4 pre-orders and others group buy)
or anyone else a unit to get and review yet? He did that, and he'd get 'tons' of orders on a positive review.
Without that there is no way I'd get this. Just common sense.
Brad
I asked why, and he answered:--and why he ignores posts about sending a sample board to a trusted forum member
Because it's sold
without this 
Basically, he doesn't really care if we trust the legitimacy of his product, and just wants to sell and profit from it. Knowing how big of a minefield mining is, i'm staying away from this one, but grabbing popcorn and snacks to see what's gonna happen next.
BTW, anyone can hook up a real gpu miner and mine in the background to the same address as shown in the video, simultaneously showing a dummy board and generating numbers on a screen. So videos where he's "mining" with this miner can be easily faked.