I'm seeing all kinds of different reports on whether it works effectively or not. I have an EM5 and overall I really like it. Increasingly I've been trying to take pictures of moving subjects such as our dogs running and playing. The CAF doesn't seem to work at all for them so I've been using SAF, 4 frames/second and allowing the camera to re-focus between shots. I get some good images but my keeper rate is pretty low. Some of it is no doubt technique. While there are other EM1 features I'd like the biggest draw would be distinctly improved AF for this kind of work. Just don't feel there's any consensus in reviews on this issue. Curious what those of you using the EM1 to shoot action think about the camera. Would also be interested in real world comparisons to cameras like the D7100 or D7 in this regard. Any suggestions for improved technique would be most welcome as well.