For those of you who, like me, rely on Canon glass and use a Metabones... Do yourself a favor and make sure to have a backup adapter handy.
Metabones is the best, granted, but I had my first "Maybe I need to go all native" experience while doing a paid theatre shoot last night. No problem with the camera or lenses, but the frickin adapter went belly up on me. Near the start of the shoot, I pressed the WO button on the side as usual, and this time it didn't pop back out. Permanently pressed in now. Aperture control still worked, no EXIF, no AF. Fortunately I also have a DEO Saker Falcon Lite (which I'm not thrilled with - bad build quality, sketchy performance with some lenses, flat-out bad performance with others - and if you don't fully turn off the camera with each lens change it can lose it's mind - ugh). So I'm not dead in the water exactly, but now I've got to ship my MB to Hong Kong and wait.
I'd said before that I had no intention of swapping out my 24-70Lii for the 24-70GM, but now I'm starting to rethink that position.