This was my starter camera back in 1977. It is a great camera for learning as it is not auto-everything. The photographer actually has to think. I still have mine and use it from time to time. I am now a Nikon man, however, as I never got used to the EOS line from Canon.
I also shoot a Mamiya 7. It reminds me of the Canon in that the shutter speed dial and the aperture rings are in the same locations on the camera. Adjusting the dials just seems natural after shooting the Canon for years.
When I take the Canon off the shelf and shoot with it, it is like shaking hands with an old friend.
OMG I never realized that! You're right they are the same! No wonder I like the Mamiya 7 so much! haha