Well ... they give a price, which is a plus point - but ... to quote "the AIRE Miner is expected to deliver an unprecedented performance of approx. 4.5 TH/s with best-in-class power rating".

So ... 4.5THs isn't unprecedented ... and looks like they haven't nailed the hash rate or power usage yet (god I hate that term 'best-in-class') .. we all know simulations can turn out differently to the final product.