The Zorki 2-C is the most reliable of my of my Soviet-era cameras. The shutter, rangefinder and film advance all work as they should. I also like the camera's compactness, which makes it easy to have on hand when needed.
When the 2-C model appeared in the mid-'50s it was most often equipped with a fixed-barrel Tessar-type lens. Those were excellent lenses, but add considerable bulk. My preference most often is to screw on one of my somewhat earlier collapsible models, either the FED 50 or the Industar 22. Both have an anti-reflective coating and are capable of outstanding resolution.