When I started my career the first cameras I bought were Bronica etrs, 645, because I had a small amount of money saved and that's what I could afford.
Through the years I bought fuji 680s, RZ's (3 flavors), Hasselblad (4 flavors) and the Contax 645.
Regardless I shot 75% of my work with the Bronicas and ended up with 4 bodies, 12 lenses, 5 finders, 25 film backs.
I had the lens lubrication changed so they would focus very fast, just with a touch of a finger.
The only mechanical issue I had was the return spring on some lenses and the fix was a shot of graphite.
They had Seiko shutters, beautiful lens roll off and served me very well.
When digital came in I knew I'd probably have to switch to a camera with a digital interface, so I rented an h1, a Contax and shot every session with all three cameras.
It was a lingerie production on transparency film and the sharpness of the Bronicas was equal to the Contax and H1, the contrast less abrupt and across the range every lens I compared the Contax was 5/8's of a stop faster than the Contax and H series.
If they had a digital interface and didn't require a wakeup cable I'd still use them today.
I was sorry to see them go, but through the years Bronica was bought and sold multiple times and horribly mis managed.
The build quality seemed suspect as the cameras made a lot of noise, but for me they were amazingly reliable and I put them thorough brutal conditions around the world.