I got into my hands a pretty neat camera, and since I very rarely have an opportunity to play with cameras and tracking, I trained it whole day. Most of the recordings failed with tracking, but at the end of day, I figured out how to do it more efficiently, and overall gained some experience. I used element 3D plugin to put 3D objects into the scene. And in one case, a Plexus plugin. All shots were taken by hand, which caused videos to be shaky, but that was the point. I may record few other videos with tripod.