I acquired a black Leica R6.2 with 50 Summicron about a month ago from Collectible Camera in Phoenix. Since I now have a few rolls of film through it, I thought I would give a quick eval.
It is the first Leica SLR I have owned and must say I am impressed. It is the size and weight of a Leica M with the same quality of construction (Of course, I would be surprised if this was not the case.). The viewfinder is bright and quick and displays just the information needed (f stop, shutter speed, spot or average metering and electronic flash readiness). Growing up with a Nikon F in the 1970's, the 6.2 provides just the correct amount of info and I prefer a manual camera.
So far, I only have the 50 Summicron but like the M version, it may be the standard on which other 50 mm SLR lenses are judged. I have been using M's for the past several years and my only negative comment is that the position of the focus and f stop ring are reversed on the R lens vice M version so it has taken me time to get used to finding the correct controls while looking through the viewfinder.
Now, what lenses will be in my future? Am thinking the 28 Elmarit and 100 Macro APO.