I got my copy today. A quick focus test using my secret, ultra-quick method showed that it front focused slightly and needed a +10 AFMA correction.
I had a shoot scheduled at an indoor location with large windows and plain backgrounds. I wasn't able to check the bokeh, but I did get a feel for sharpness and autofocus performance compared to my old favorite EF 85 F/1.8.
I haven't had a chance to go through all the images yet, but generally I am quite pleased. The autofocus was spot-on, and it locked on quickly. I felt no need to turn off the image stabilization.
Here is a full frame portrait captured at F/2 and 1/125th. It's hand held and I wasn't making any big effort to hold the camera steady.
Now let's zoom in to a standard headshot:
And let's zoom in some more for a look at the eyelashes.
I'd say this is a definite improvement over the EF 85 F/1.8 in image quality.
Was it worth the roughly twice the price of the Canon? Hard to say. It is certainly a lot larger and heavier than the Canon. Depends on your budget and what type of shooting you do I guess. It's nice to have choices.
I will let you know when I have an NSFW blog post ready for viewing so you can see more examples from this shoot.