One of the most valuable assets a luxury hotel has, the concierge is there to help make a guest's stay a happy and memorable one. Indeed, concierges are trained professionals who services run the gamut from the mundane (message handling) to the extraordinary (such as getting hard-to-find tickets to the latest Broadway show).

To learn more about the importance of a concierge, we sat down with Spencer H. Wadama, who is the General Manager of The Surrey Hotel, the tony and newly renovated boutique hotel located on Manhattan's upper east side. Spencer previously served as the general manager of the Ritz-Carlton in Sharm El Sheikh (Egypt).

According to Wadama, The Surrey Hotel's staff of concierges, for example, regularly make special arrangements for their guests, often before the guest has even arrived at the hotel. "They give you an opportunity to experience a destination in a better, more authentic way," says Wadama. "They are a priceless amenity."

Ever wondered how much to tip a concierge for his or her services? Here what Wadama has to say about this subject in this Luxist Awards video.