A:
Well I asked the question, and since we bought this model, I will answer my own question.
Installers said it would be 4 hours for frig and freezer to come to temp. The unit was at temp in approx 2.5-3 hours (frig at 37 degrees, freezer at zero degrees).
Ice is a different story. Installer recommended dumping first two buckets of ice so that water line would be cleared of any residue. So it was a good 24 hours before we started using ice. I will say the ice cubes are small and white. Kind of wimpy ice cubes. .
Thanks to all who answered the questions.