I've been using an R8 for almost a year now and if I didn't have a small fleet of Leicaflex SL bodies to compare with it I'd be completely delighted. Compared with nearly anything else the viewfinder is a delight; compared with the Leicaflex SL the viewfinder is second-best. The R8 has a LOT of very handy features and is an ergonomic masterpiece so I won't be selling it any time soon but because of the SL's viewfinder the R8 is unlikely to replace the SL as my primary camera.