There are plenty of reviews

I'm very satisfied with the camera, but the firmware (FW) is a little buggy.
For example, FN keys 1 + 2 are reversed (where, legend or FW may be debatable).
FN1 key does not perform according to time function again only if you have between pressed OK or another button.
Display By switching works well for time no longer, it does not appear anything.
Water balance is also after time away.

Generally, it seems so, that functions for a time (darken no input, screen) are no longer available or
the FW depends.
FW is however currently.

Unfortunately, the FW is now part of some current devices a problem that makes me increasingly on the palm.
Since it does not surprise me that the Olympus is affected.
But apart from that the camera is an experience.