We just got back from an Alaskan cruise on the Sea Princess. We had personal choice dining. I think the auto tip is OK but I noticed a different attitude of the wait staff - especially at breakfast & lunch. They don't seem to be as attentive as they used to be. Maybe because they are going to get the same tip as everyone else they don't care. I asked for Rum raisin ice cream several times and they said it was only made one night. On a previous back to back cruise with traditional dining I had it every night and sometimes at lunch.