We went in August. I would say it was worth it. The only reason we booked it was because we were bringing my nieces. I would never have bothered for just my DSs. Well, now I want to go back again, but just because of the food. It was awesome! DH didnt really care for the potatoes, but I loved them. And the cheese filled french toast was out of this world. I wish they offered those items at another breakfast or take out or something easier to get.
Another advantage you will have is if you get there right on time, you will be done right as the park is opening. We had an 8:25 PS, but were taken right away when we arrived, around 8:10. We were done and in the park by 9:00 which helped us to avoid lots of lines.
When we entered the MK there was a CM standing near an old fashioned fire truck, asking if anyone was going to the castle. When we said yes he told us to hop on. We did and he gave us a ride up an almost deserted Main St, right to the castle. It was so cool. So if you are interested, look for that.
As you can tell, we really enjoyed our Cindys experience.