I've used an R8 now for a couple of years, on first seing the design settup (you can do all corrections without taking your eye from the viewfinder) I realised it was the most work-efficient SLR on the market it is incredible fast to work with and the shutter has a sound that is diffrent from other cameras enabling one to do candid photography without being noticed, it is not quiet like the M butpeople dont recognise the sound as a camera. However, as Leica understood it had certain design flaws, most importantly the AE wheel was without a lock mechanism (corrected on the R9) sine it protrudes from the camerabody one tends to change settings when carrying it around, secondly the LCD has no backlight which really isn't a problem.