While this game is fun, it is completely random which customers come in first. There is no system to it. Ive had too many games where the customers do not leave their hotel rooms or give me anything to get them unless the new customers looking for rooms are already unhappy and leaving and cause me to fail levels and loose streaks. Besides this very frustrating fact, it is a good game. P.S. This was toward the end of the 1st hotel, and i had most of everything max upgraded. Game bugged out.