We were at the Poly last December too. I thought the decorations were pretty, especially in the concierge lounge. However, the music can definitely get to you. Apparently, there aren't very many Hawaiian Christmas songs so they play the same five or six over and over and over again. If I want to drive my son crazy all I have to do is start singing one of those songs, he runs out of the room as fast as he can! The monorail is very convenient but we ended up taking the boat most of the time, even with a stroller. It's definitely faster on the way back as on the monorail you have to make the big Contemporary, TTC loop which always seemed sort of slow to us. Have a wonderful time!