Mine is regularly used but now that I have shot a little over 250 rolls of film the shutter is starting to make some noise. Maybe the shutters in these cameras need more frequent cleaning because I have a couple Leica 3s that have had far more use than that and are still running smoothly.
I checked with Leica USA but they want about $800 for a CLA. Since I am truly broke I guess I'll have to figure out how to do it myself or trade a camera for the work.