When we were at MGM last week we decided to try to eat at Mama Melroses around 4:30. All booked up. Hollywood & Vine. All booked up. We went to the Grand Floridian Cafe which was our original destination. They don't take PS. They had plenty of tables available around 5:00. Another day when we had ADR at Le Cellier, people walked up at 4:30 and were turned away.