I watched a couple on a deck below mine being served each course. It looked like a romantic setting for a meal that they would remember forever. I know you are expected to tip the waiter. I have not had room service myself, but I have had had people tell me that just for delivery of items to the cabin that they tip $1.00. I would think that a waiter serving you in a personal manner would be worth a lot more. If it were me, I would tip them $10.00-$20.00.