I appreciate the comments...I will have to make a decision about my R4s. I agree that a 100% viewfinder is not essential; however, for me, an unobstructed viewfinder tends to be essential. My Canon F-1Ns have 97% finders, and I have never had a problem with this. The F-1N, though, has a beautiful, unobstructed finder--with the exposure information off to the side and along the bottom...where it should be, in my opinion.
With regard to the R4s being awkward to use, I gather you mean the fact that the shutter speeds do not always add up, so to speak, when in manual mode. This has never bothered me, as I have always been in the habit of checking the shutter speed knob (and pretty much ignoring the camera's suggested shutter speed, as I use a hand-held light meter).