I love my 10. I have been using it for a bit now and it is great. High ISO, like very high, leaves a bit to be desired but something I can work around. I got an Olympus email this morning and the deals on the EM5II are incredible right now and have given me pause. What are the main advantages, besides weather sealing (which requires sealed lenses of which I do not currently own any), of the 5II over my current 10?