I am now enjoying a rosy feeling of nostalgia for the days when I had a Mamiya C330 that seemed to be built like a tank and never caused me any problems.
Make no mistake, the Minolta/Sony lenses are built like a tank, most of them, some
kit lenses can be suspect but they are also cheap. I have a number of Minolta lenses, some of them dating back to 1985. I have had problems with three lenses only, two Sigmas and a Tamron. That is why I religiously buy Minolta/Sony lenses only, even though they are usually more expensive. I'm not saying 3rd party lenses are no good, just that I am not prepared to take the chance and buy another. In all fairness Canon and Nikon lenses are usually very sturdy also.
Enjoy your rosy feeling of nostalgia.
The Mamiya cameras were very good but always a cheaper alternative to the superb Rolleiflex. These Twin reflex type cameras are much simpler in design to DSLRs and as such are inherently less prone to problems. You may also note however that they are, for all intents and purposes, obsolete. Also would you really enjoy going back to a square format 120 film camera? Canon compacts are no better than Sony or Nikon compacts. My 1953 Voigtlander 35mm with a f2.8 lens is still working like new (I bought it used in 1954). However I would never even dream of going back to actually using it. It commands a respected position in my cupboard, together with my Minolta 7000.