Few bullet points:
Wedding photographer and is finding the AF to be 'as fast and accurate as I've come to expect from the Batis line up' - though note he does not use EyeAF at all in his shooting
CA - none
Bokeh - 'happy enough'
Overall IQ - 'very impressed. Zeiss colours, excellent sharpness, and pleasing OOF rendering. It's everything I wanted from this lens'
The AF was fabulous when not using eye-af as far as I can judge it. I would agree with everything. Just bokehwise some people where sometimes puzzled since it can be a bit harsh, depending on the subject. However, personally, I liked it. It has character.
And one thing that is great about this lens and why I basically sold my 50/55mm Sony in order to get the 40mm Batis: the 40mm focal length is (in my mind) much more versatile. It’s really a perfect compromise between 35 and 50mm. So for people like me, who don’t need “specialists” for 35 and 50mm, 40mm seems like the perfect solution. I really felt been free from some restrictions the 50mm posed on me in certain situations.
And, which was also very important to me, using the 55 mm Sony made me sometimes wonder why switching lenses in order to shoot a portrait with my Batis 85, if the 55mm is on and can basically do the job. 40 vs 85 clearly is a difference in various ways.