Nope. I take it this is the earlier model with the stepped top plate and top mounted shutter release.
The lens is perfectly adequate to very good. Expect performance to vary slightly with focusing distance.
If the rangefinder is accurate then all is copacetic. However, make sure the lens is turning on the helical and not the front group mounting threads; the focus ring should go out a few mm from infinity to closest focus.
The Prontor SVS shutter is reliable, however it has a quirk in that the same mechanism is used for flash sync selection, M delay and the self timer. But I think the camera defaults to X sync with the self timer in use so not a problem (unless you are going whole hog vintage with flash bulbs).