You need hardware like the MōVi or steadicam, not camera or software stabilisation to get smooth freestyle camera moves.
I am still researching all the 3 axis stabilizers and some are too complicated for fast work, some too limited, some too cheaply built, but all are a good idea to a point, though if you need someone on a joystick, someone pulling focus and someone running the stabilizer you can hire a steadicam guy and his focus puller and not worry about the overhead.
If you shoot wide, you don't have to worry too much about focus, try them with a longer lens and life gets more difficult and the stabilizers like MOVI take time to learn. They're just not grab and shoot anything.Though I have no doubt that someday this will all be handled by a combination of software and in camera stabilization.
The olympus em1 and em5 is freaky good, except for a weak codec and if one of these companies would put a slightly oversized sensor into their cameras, up the codec, and well, all I can say Panasonic are you listening?
Hollywood or should I say New Orleans, will probably never go to a software in camera use of stabilization because DP's and big budget love big cameras, love complicated stuff. I think there are people that miss the maxwell.