I'm a Nikon FX shooter (as well as various film formats, back when I had the time) but I bought into Micro Four Thirds in the summer of 2012 when I found a deal on a refurbished Olympus E-PM1 and kit lens. Up until that point, I'd liked the concept of the bigger sensor in the small & light body, but had found the starting price prohibitive when considered in addition to the system I already sunk cash into. For about three years, things worked out great and my little Olympus dominated my daily photography. I never felt like it competed with my Nikons for handling or technical quality, but the compact size was fantastic. I upgraded first to the Panasonic 14mm f2.5, then with some eBay struggles, a second-hand Panny 20mm f1.7, a Nikon F adapter, a cheapie adapted 25mm f1.4 CCTV lens, a Pinwide pinhole lens, the VF2 EVF and well, you get the idea. I was sold on m4/3 as a second system far as my budget allowed. When my dedicated video/programmable button fell out and got lost, it was annoying, but it didn't discourage me too much. The birth of my daughter for a time encouraged me to use m4/3 more, as camera weight became even more precious when weighed against diapers, bottles of water and other sundry baby supplies. Gradually though, things fell off and my Nikon D700 saw more and more action, especially after my daughter learned to walk. This summer, when packing to visit my mother, it was my Nikon and a 50mm that went with me, no questions asked. The mere thought of wrangling what I'd grown to think of as a slow and awkward system made the idea of taking the Olympus out of the question. When I got home, I decided to shake things up and put the kit lens back on the E-PM1 for a playground outing with my daughter and one of her little friends, hoping variety would spark new enthusiasm for m4/3. My wife, who is not a photographer but is an art historian with an impeccable sense of aesthetics, summed things up well: "I think those are the worst pictures you've ever taken." So, here I am, wondering where the heck it all went wrong. At my m4/3 peak, I was shooting everything and produced shots I treasure and that I'm very proud of. Street photos all over Beijing while I still lived there. Many of my wife while we were dating, then engaged, then pregnant. One photo of my father (with the CCTV lens no less) was used at his memorial service. Tons of my daughter for the first year. Now, even going to the grocery store, my first instinct is to grab my Nikon. I'm still making an effort to get back into m4/3, but I could really use some encouragement from you good folks who are deeper in than I am. Bonus points for anyone with toddlers.