I'm mulling this over, I've been a confirmed Panasonic user for a while. The IBIS story is starting to get really appealing to me now though, I've just always found the Oly layout and menus confusing. I used to have an Oly C8080-wz, great camera but the buttons never made sense to me. Fast-forward to a borrowed E-P2 for a while, same thing! I just fumbled with the camera. Maybe I didn't give it a fair shot but who knows. I can switch between Nikon and Panasonic very easily, they're very similar at least in my brain. I just kind of "know" where the buttons are intuitively and I'm hesitant to give that up. Mainly though I like the weather sealing, IBIS and size of the E-M5 II, possibly the E-M1 if it feels smaller in the hand than it seems in photos. Never held one though. I guess I'm looking for success (or failure) stories of a switch. How long does it take to reprogram your brain into Olympese? Thanks, Greg.