This story is about what happens when a newly blended family tries to blend their traditions for Christmas. They do a good job of showing how traditions are bittersweet when someone is no longer there to share them. We see that these kids are not selfish and in fact very mature for their age in that sense. Giving up the traditions is like losing that loved one again.
This is not your stereotypical Christmas story, although I'm sure elements of it have been done before. The ending could have gone a couple of ways.
All the acting is good. Two of the kids seem especially mature for their age. I was particularly impressed with John Ratzenberger who was nothing like he was on Cheers and presented a Christian retired pastor as a reasonable man of faith and love.
There was a Bible reading about Christmas and saying of grace that was more than rote. The movie may be a little preachy, but it is not about religion. It is about the importance of family.