I cannot wait to get the Nex 7, but for the moment the Nex 5 with with last firmware allow me the enjoy this new feature.
I have played today working to a restaurant on the street with the old 58mm 1.2 and I'm pretty sure that auto focus will not have been fast as it was manually, this is pretty impressive. The only wrong side I saw today, it that in very bright day ... the lcd can be some time difficult to see. But ... the good invention of the hand was able to do the shadow it needs to compensate
Here is some picture taken walking with a group a people (I didn't stop, so the result is for me natural angle
All taken at F2.8, in P mode ISO set to 200, and average light calculation, not PP, directly convert from RAW in Lightroom:



This lens stay probably one of my preferable out of focus effect, even if at F1.2 it is not tight sharp, but it become mostly completely fix at F2.0.
For the moment, I set the Peaking mode to High and choose the Yellow color, for me It was the best on the street today. But day before It was on the white color. I hope there will be more adjustment on this feature in the future. Link allowing to make the color Peak surrounding to blink ... or be kind of bold shadowing.
If you have not tried yet the feature, I strongly invite you do do. Once you master your manual lens (setting the aperture quickly to your choice) you will probably not need to play with other setting inside the camera.
Regards,
Frank