Have you ever decorated an entire world using the seasonal lot marker?

I was just wondering what everyone else's experience was in doing this.

In my last CAW project I did this on almost every lot, where there would at least be some kind of decoration on the front of the lot to make everything look festive.

Needless to say, it was very hard on the game during seasonal switches. But it was a lovely effect. Has anyone else done this? What was your experience with it?