While I generally would like seeing novellas in a longer length for one reason or another (and those range from wanting to know more about the characters, to not wanting the story to end, to other, less savory reasons), Out of Time is exactly the perfectly length for its story. That isn't to say that I wouldn't mind seeing the characters in other stories - I would like to see more of them.
However, Ms. London presented Edward's evolvement within his new life in just the right proportion. The novella read like a well-balanced meal that neither left the reader starving nor feeling reading to burst. The glimpses into Edward's and Ambrus's courtship read like a dance where the partners move apart only to rejoin when the steps allow in a well coordinated effort. Very enjoyable.