Have had my R3M for a few months now. Nice camera, great meter (although I wish it was more of a spotmeter), but the film frame counter sticks when I open the back to change the film. If I open and close a couple of times, it will usually reset. Because the camera was bought from Rich Pinto of Photo Village, and I'm in Canada, it's a real hassle to send it back, although I may have to do that.
There were other issues: the rangefinder patch was off, but I learned how to open up the top ofthe camera and adjust it, altough it is a hairy experience and more touch and go than science.
The other thing I don't like about the R3M is that the film winding lever feels wimpy, and doesn't snap back after winding forward a frame. The camera is otherwise quite solid, and with the T winder on it, has a heft that allows me to shoot at 1/8th second quite successfully.
I'm liking it, and I get great interest in it from others, not that that is why I bought it, in fact I would rather not be noticed than noticed. Anyone have other issues with this or the R3A?