When I visited Shanghai I was surprised to see room service robots in the hotel I stayed at. I understand these robots deliver food, mail, express packages and items ordered by hotel guests through room service. I saw service robots can take elevators on their own, deliver food to guests, and assist room cleaning staff. The service robots free employees from repetitive and low value-added work that enables employees to focus more on providing higher quality services. In addition, most hotels in China with three stars or more are now equipped with service robots.