This lens is expensive, but does look good.

Yes, the lens is expensive. It's really, really good, though. We wanted something to pair with the Leica 42.5, and this fits the bill perfectly. Every bit the same quality. Autofocus is excellent for photography, not great for video, but no worse than the 42.5. I can leave it to the professionals with studios and testing equipment to provide technical comparisons and reviews, but my subjective impression is that this may very well be the top lens in the MFT world now.

I wish it were cheaper, but it's good enough that I'm going to keep it in spite of the price.

Portraits usage

http://dc.watch.impress.co.jp/docs/review/lens_review_2/1035806.html

Comparison with Panasonic 25mm

http://songmatin.blogspot.com/2016/12/lensolympus-25mm-f12-pro-vs-panasonic.html

Review

https://www.focus-numerique.com/focale-fixe/tests/olympus-m-zuiko-digital-ed-25-mm-f-1-2-pro-3021.html

Small discount, as it goes for $1149 now

https://www.amazon.com/Olympus-M-Zuiko-Digital-25mm-Black/dp/B01LW4IFUI/

DXOMark test

https://www.dxomark.com/Reviews/Olympus-M.Zuiko-Digital-ED-25mm-f-1.2-PRO-lens-review-Solid-choice

http://dc.watch.impress.co.jp/docs/review/special/1054182.html

Review

https://www.ephotozine.com/article/olympus-m-zuiko-25mm-f-1-2-pro-lens-review-30628