I also have lots of love for the 40mm STM for the price:performance.
The other surprise even though I still don't like it is the 18-55 EF/M. Shortly after buying the M3 did this shot. That lens had a decentered element and eventually was replaced by Canon. The new one is a tick better but still has some issues. Liveable... In spite of, the shot was very nice.
Left corner on the railing is the G15 doing a time lapse. The 24-70/2.8 on this trip decided to have one of the zoom collar bushings seize so the lens was inoperable. Nothing like being forced to use an alternate camera.