I am member of a group which intensifies on soviet cameras. they are serious people and lots of konvases trading and they do us senate ads to commercials to movies with these cameras. I didnt handle one but heard they are noisy and terrible for sound recording with them. and looks to me bulky , heavy and ugly but you can expect as same as from a more expensive and quality camera.
The great thing is to able to use soviet cinema lenses . These lenses are made by LOMO and 20 years ago they were making quality cameras lenses as spacecrafr technology. You can pay 400 to LOMO and get better quality than 7000 euro zeiss.
If you intended to invest 1000 , best bet is LOMO and Konvas