I bought this just for the video mode in 1080p / 120fps.
Becomes extremely good quality of the films, I must say. I pull then down the speed in FCPX it will be really good slow motion.
Ang stills, I have not much to complain about there, it is like other RX100.
Are you just looking to take a picture I would rather bought Mk2 and Mk3, depending on whether you want the viewfinder or not.
My copy was, however, sent back because 3 dead pixels on the screen. If you buy a camera for 11.5k so it is not acceptable and it was Sony with. So I am waiting for my new now.