D600: A gazillion EV of dynamic range isn't worth squat if your camera won't focus or meter properly Locked

Based on your answer and all the caveats, the answer is no. The camera is not designed to be used as a point and shoot through live view.

That the camera is faster than previous implementations of live view does not mean that it should or can be used successfully as a point and shoot in the live view mode.

Posting that it can be would be adding further grief to the poster's situation.