To me it feels wonderful. Maybe this is the digital Pentax MZ-5 I've always dreamed about. I never owned a film OM camera, though I handled a couple and liked them a lot. I played with one of these OM-D's at the focus on imaging show, but it was a black one fitted with the grips. The silver version is much nicer as far as I'm concerned and looks great with the 12mm and 45mm lenses.
It feels slightly heavier and more robust than the Pens, and you really get the sense that this is a weathersealed camera. Screen and EVF are very clear and very sharp. And the shutter! It feels like a real one. None of that wimpy delayed nonsense that other m4/3 cameras have. This is firm, positive, fast and has a simply wonderful "clunk" sound.
It felt comfortable the moment I took some shots with it, and as talked about before it has lovely fast positve AF.
Oh the pictures. Yes they look just like my GX1 produces. Thats a bit of an oversimplification, but thats pretty much my initial impression. I was expecting that however. I will, of course, check it out to see what improvements Olympus have made, if any, to the jpg. and raw output.
I'm off to take some test shots.
More (a lot more I'm sure) later.