I just got my commlite; I put a 70-200 EF 2.8 II on it. At first I was pretty excited because the autofocus was super fast and the first still shots were great - then it seemed that it just got lucky and the autofocus is about what you'd expect - it doesn't really know what it's doing, you can manual focus faster.
Adapter is really well made. No usb like the metabones, so there's no firmware updates. No lockups while I was using it, recognized the lens and worked without issue with a couple of caveats: 1) for some reason it reports that IS is not working, but it is working, I can hear it and the effect is apparent. Need to test this more and with different lenses. 2) if APS-C is on Auto, it thinks the EF lens is APS-C. You have to turn it to off. Otherwise it seems to work as advertised - not bad for $85, especially considering that the metabones seems to be, if anything, worse. If you're coming from a Canon as a video shooter, you're no worse off than you were - IS and Aperture working, autofocus not so much.
Adapter is really well made. No usb like the metabones, so there's no firmware updates. No lockups while I was using it, recognized the lens and worked without issue with a couple of caveats: 1) for some reason it reports that IS is not working, but it is working, I can hear it and the effect is apparent. Need to test this more and with different lenses. 2) if APS-C is on Auto, it thinks the EF lens is APS-C. You have to turn it to off. Otherwise it seems to work as advertised - not bad for $85, especially considering that the metabones seems to be, if anything, worse. If you're coming from a Canon as a video shooter, you're no worse off than you were - IS and Aperture working, autofocus not so much.