I seen this lens at Teds so studied it ( has good write ups in regards to sharpness) and also looked a my shooting range, and surprising I shoot a lot at 24 and a up but not a lot under. So this will be my go to landscape lens for wide, but not so much at 16 as there is some distortion. I need to pay at that range more and see it it's useable.
On my lovely camera

Uncropped at 28 and - 4 it was suppose to be - 6 ( Drive past here every morning to work, was hoping for a hard frost)

Uncropped at 35
