The dealer that I bought my D100 from told me that much of the sharpness issue was sorted out with the V2 firmware upgrade. Mine was shipped with V2, so I have nothing to compare it to. I do know that I can get some incredibly crisp shots quite easily. I suspect you'll be pleased with the improvement when you get your camera back from the shop. They also improved the tonal quality. Colours should be more accurate and rich straight off of the memory card -- but again, I have nothing to compare it to. A tip for getting better colours is to shoot in profile II mode, which is Adobe RGB instead of sRGB. The latter has a smaller color space, and can make some subjects look a little flat.