Anyone looking at a Christmas special written by/for Bill Murray and expecting a plot and story line is either too young or too dumb to just enjoy it. It is Bill at his best. Calm, collected and one hell of a showman. It's dark and bright in the best of ways. Great sound quality, good people being people.
The progression of the movie was very well done. I was content with it initially; but as it went on I loved it more and more. I watched the musical scenes twice (Silent Night maybe more) in one sitting.
In 10 years everyone will be calling this a Christmas must watch. If you know Bill Murray and enjoy him, you can't lose.