It's a monster. An ugly monster. A really ugly monster, and I mean a really, REALLY, ugly monster.
But, I would totally purchase it. (If I had the need and the cash, neither of which applies.)
It's a game changer. This is where all recent mirrorless technologies converge into a pro package. IBIS, PDAF, eye-AF, video. It makes me wonder how much this will eat into Canon sales. I'm sure there have been a lot of professionals with depreciation burning in their pockets, waiting for an actual professional release from Canon, and then this comes along.