I like the look of the Canon rangefinders and they're much cheaper than Leica of course. How are they in use?
I'm biased, of course, after using the P for my OCOLOF. I bought it because I wanted to try LTM lenses but I'm not keen on the knobs of the M2/M3. I like the clean lines and the way the film rewind folds away neatly.
It's unmetered, though there is a selenium photocell meter that fits into the shoe and clips over the shutter speed dial. I don't have one because I think it doesn't enhance the look of the camera, there's a good chance of it being inaccurate now and it's simple enough to take a meter reading when the light changes. I use negative films for the extra bit of latitude.
The shutter runs from 1s-1000/s in full stops with B and flash sync at 55/s. The dial is light with positive stops and simple to adjust with one finger. It's all mechanical and you can change the shutter speed after winding on without knocking anything out of sync. Handling-wise, it's larger than my Yashica GX and heavier, it's a good solid heavy rather than a cumbersome one, if you see what I mean.
The Canon lenses don't carry the premium of the Leica name but they aren't that cheap as they obviously fit all LTM cameras and the mirrorless crowd have discovered them. And, of course, there's the legendary stuff such as the 50mm f/0.95.
Possible problems other than dirt and old grease are that the shutter blinds are very thin stainless steel blades painted black. There's no risk of them burning through like some cloth shutters but nearly every example I've seen have creases in the steel. If they're not serious then there shouldn't be any impact on the shutter speeds. I spent ages looking for uncreased blades, confirmed with the Japanese seller that these ones were straight and then had to claim a partial refund through ebay when it arrived and it was obvious that he'd lied.
The rangefinder can be knocked out of alignment quite easily though it's a piece of cake to put back, the horizontal adjustment can be done without tools while vertical adjustment only needs a small screwdriver.
Overall, it's one of my favourite cameras, it's quiet and unobtrusive like a good rangefinder should be