I've shot quite a lot of rolls from this impressive tiny camera. From the negatives, it looks fine. I don't have the time to scan my negatives yet, or even use my loupe and proof the pictures.
The viewfinder is pretty small and, not very impressive. But, it is great considering the size of the camera. Unfortunately, the rangefinder patch isn't a beaute, it's so tiny, and probably quite faint as well (considering its age). Quite often in poor lighting, I have to just fiddle the focus ring where it feels natural for me and just take the shot.
The rangefinder accuracy is very poor as well (due to rangefinder base length). Make sure you fiddle the focus ring with an angels touch if you're shooting close at f1.7.
This camera isn't the cheapest or readily available out of all the fixed focal length rangefinders.
But a f1.7 lens (IQ seems pretty alright), with some form of automatic exposure (shutter priority), in a midget body. The downsides to this camera is nothing compared to all these benefits.
You cannot buy a third-party screw-in hood on this camera, even the vented ones. It will definitely block the rangefinder and the bright frame illumination (which is pretty dim to begin with).
Uses LR44 batteries, which is a handy thing when my main body is an M6 (inter-changable batteries!)
You can read up on it on cameraquest.