Personally I had an opportunity to appreciate moderate dimensions and weight of the Samyang 1.2/35 during a trip to Norwegian Lofoten. It didn’t make my backpack especially heavy and below you can find some processed shots, those I like the most, which I managed to take.
good quality casing,, excellent image quality in the frame centre,, good image quality on the edge of the frame from f/2.0 aperture,, low longitudinal chromatic aberration,, negligible lateral chromatic aberration,, practically zero distortion,, good performance against bright light,, favourable...
weak image quality on the edge of the frame near the maximum realtive aperture,, noticeable spherical aberration,, distinct astigmatism,, huge vignetting.