I take it on trips in the backcountry and it has been through fire and rain. It competes with the discontinued Bessa T for that role, each body having different strengths. The T doesn't require batteries, is smaller, lighter, and has external "traffic-light" metering LEDs that can be convenient when you have your eye away from the camera. The T will also be much more accurate when switching to long, fast lenses. But the R4A has the integrated VF/RF, which sometimes trumps the other advantages of the T.
I tried to sell the R4A once, but the buyer was unhappy so I took it back, and have been very glad to have it. With use, silver magnesium is starting to show through the black finish a bit. I dropped it once and had to have the back cover replaced, but it was easy and not expensive. The only weakness of the camera lies in the retractable inner rewind lever (don't know what that piece is called). On one occasion, a piece fell off and needed to be replaced. Another time the rewind spool got stuck because the inner lever had popped up, causing the film advance to jam.
It's taken its knocks and keeps on truckin'!