An update about the spot metering capability ... I have always found the metering of any Olympus camera (SLR or Rangefinder) to be very accurate, and for most of my work the center weighted metering was just fine. I probably only used the spot meter about 5% of the time. But after a recent trip to Alaska I have a new respect for it.
A combination of snow peaked mountains, dark evergreen forests, an unusually bright, clear sky, and fairly weak sun at such high latitudes conspired together to throw off the center-weighted meter nearly every time. But by metering the forest 1-1/2 stops under and the sunlit snow 1-2/3 to 2 stops over, nearly every shot was perfectly exposed.