The only "cheap" rangefinde I have any experience with is a FED-2. It is, quite simply, exellent! The rangefinder has a very long baseline, making very precise focussing possilbe with a good lens. Even shots at full aperture (f:3.5) with the FED collapsible lens have been spot on.

The viewfinder is small, but the dioptric correction goes all the way to -4, whih means I can use it without my glasses. I can then get close enough to the viewfinder to see through it properly, which is a first for me.

I also have a Bessa L, but that has no rangefinder or even viewfinder at all...