Correct, the em1ii is a spectacular camera (I’ve been using it since it was released), but I suspect it is way out of the OP’s budget since he was asking about refurbished em10ii cameras. While the Panasonic 100-400 is a great lens, I just can’t recommend it to anyone that doesn’t insure their gear, given the recent warranty issues with that lens. If it breaks, even if it is under warranty Panasonic won’t fix it, they’ll only offer you a refurbished replacement that is still too expensive.

Cheers.

Everyone has an opinion as to which is the best camera format, but as someone already stated, it is next to impossible to find a "bad" camera among the major manufacturers these days. I also have quite a large investment in Nikkor lenses going back several decades, but I finally decided to try mirrorless and I chose Micro Four Thirds. Why? Well, size/weight was one reason, but more importantly, virtually any lens ever made can be easily adapted to MFT, and the image quality is also purely fantastic. So, my wonderful Nikkor lenses are still completely useable (in manual mode), and native Olympus M.Zuiko and certain Panasonic lenses also happen to be fantastic optical instruments.

However, rather than jump head-first into the deep end, I bought a slightly used Olympus PEN E-P5 to test the waters. It's already a five year old model but has essentially all the marvellous technical advancements Olympus has pioneered over the past few years including 5-axis image stabilization. I've attached some of my Nikkors to it, and I'm simply amazed by what this little beastie of a camera is capable of. I believe I'm now fully ready to make the dive into the Olympus OM-D MFT system. I think you would be doing yourself a favor by at least checking out MFT. But you know what? I still miss the old days of shooting with my now ancient yet wonderful Nikon film cameras. If you love photography, the equipment is almost secondary.