We were at WDW 2 days after Christmas until Jan 2nd. Naturally, it was a very busy time. FP+ was fantastic! We felt that it aided tremendously in crowd control!
We are heading up Saturday morning. We have our FP+ selected, our old DAS in hand and ready for a new one, and a positive attitude. Not a planned weekend, but a spontaneous work thing for hubby. It may not be the same as when we went with the GAC, but I make it work for my son. I'll report back once we are there.