I've been using the SL for a week or two now and have been really impressed with the image quality. I wasn't expecting anything special from the 24 mpixel sensor but it is quite remarkable. It's sharper than my D810 but that may be a function of the inherent blur caused by my old hands. The DR is excellent and the colour is very similar to that of the M9. The 24-90 is nothing special though. Just a decent lens. It does save me carrying 5 M lenses so from that point of view is quite a decent alternative. So far, so good.