I very nearly bought one for about $150 at a camera show.
I ended up thinking better of it, having never actually used a rangefinder. I ended up with a very good Minolta Hi-Matic 7s. Rangefinders are awesome! No blank out when you take the picture, very, very quiet and non-jarring shutter (i.e. no mirror swinging up every shot), and only a very select few can actually change the lens. You might think thats a bad thing, but it lets the camera and lens work more closely.
I just dev'd a set of zoo pics I might link here.
Nothing is quite like film.