I'm "hooked" on BBF. Not better or worse, just what now works for me. I recently got more aggressive using differing focus points, as well (had been center focus then recompose) and really appreciate the versatility this brings to the 5diii. Still training my fingers to find the button I want when I want it, but it is getting to be second nature.
And, I've gotten used to switching to the green square when I hand off the camera for someone to take a shot of us. Yeah, DOF not always ideal but the camera does a pretty good job of setting it up and exposing.