Well, I just bought an Olympus OM-D EM-10 from KEH for $275 in LN+ condition. I just received it yesterday, along with a panny 14-42mm II lens and a lens a bought on Ebay, a Rokinon 7.5mm Fisheye.
Today I did a little shooting in the back yard and at my shop using these lenses and camera, along with some legacy M42 lenses.
So far, I think this little camera is a real keeper! I've been hiking for the past couple of years with a D600 and 4 lenses as well as a large format 4x5 film camera. I wanted to get a light weight kit for some of my more extreme hikes.
Here's a couple of samples I shot today, none are great, but I am happy with what I am getting out of the camera.
Rokinon 7.5mm F3.5 fisheye at close focus (around 4" from the lens).
Panny 14-42mm kit lens at 42mm
Last, but not least, my favorite lens of all time, a TAIR 300mm F4.5 Photosniper Russian lens. (Equivalent to a 600mm lens on this small sensor camera).