Yes, mine is pretty quiet. The first Kiev I had was an early 4, and the stiff film advance felt like old cogwheels grinding against each other. Eventually, the advance jammed.
It was quite a surprise to feel the much smoother advance on my 4a. Before, I used to have chapped fingers after an afternoon of shooting. With this particular 4a, in contrast, there is no effort needed.
I read that home-repaired Kiev tend to be over-tensioned, and turning the right screws can result in a buttery smooth camera. Note also that bad lubrication can contribute to things being stiffer: a cheap lube will degrade and leave residues.
But now I found a Contax IIa, so the Kiev, as good as it is, must go...