I got the 50s last summer, along with several lenses. I'll echo Christoph's comments. The camera is a pleasure to shoot with, the lenses are fantastic, and the files are superb. I recently added the 100-200mm f/5.6 zoom, and it's become one of my favorite lenses. Great for portraits as well as landscapes.
I expect all the same from the 50R, though having only seen online photos, I'm glad I got the 50S. I expect I would miss the hand grip and the EVF, as well as the vertical grip.