I got PS for Cinderella the first time I ever tried for last June. My husband tried on his cell phone and I on our home phone. I can't remember which one of us got through first, but even the CM said it was odd how quiet it was that AM (and we were calling on a Sunday!). Anyway, I took the first possible time they had, and after I had my Confirmation #, I then asked what other times they had and switched times.
We had a great breakfast. Some of the characters were nicer then others and my 4 year old DD was a bit apprehensive at first of the darkness of the castle waiting room, but in the end it was worth it. Very helpful, friendly staff who helped my daughter through her "fears"!