Cast members have been wonderful. Happy to help and I’m sure to be back at work. Primo Piattos menu has been slimmed down ( as just about everywhere at Disney). All orders are by mobile order and are bagged for take out. There are tables on the waterfront outside and some inside spaced apart. The refillable mug is available for about $20. There is no self serve with the mug, you show it to the cast member and they fill a large size Disney cup ( with lid and straw if you want) with choice of beverage. Riviera has typical coke products, coffee and sweet and unsweetened tea