Herman - the OVF is very simple - no information, no focus point, just a very bright 85% view of what you are photographing. To be honest, I thought this would be a problem for me but I've found, at least so far, it hasn't been as big an issue as I thought it would be. The focus lock indicator is fairly viewable to the right the finder.
I'm a left eye shooter and I've found not unlike using my now sold E-P1 with the 17mm and external finder, that I can see the LCD screen and focus area fairly well if I look down. 'Not sure how well this will work in very bright sun light, I haven't tried it yet.
As previously mentioned on this forum, and very hard to believe that I've tried it, but the face detector works very well adding to a bit a focus security when shooting people. If the camera doesn't detect a face, the focus defaults to the normal focus area indicator in the LCD. 'Hope this helps.
. . . David