We myself, hubby, mum, dad and 2 dds (aged 4 and 7) stayed at Port Orleans, we bought the mugs and used them every morning, one of us did the early coffee run(it stayed hot for ages) and we used them again at breakfast, after a few attempts I managed to get the coffee just right. Really good for a cold drinks at the end of a long day.
I lost the lid one day on the way back to the room, when I popped back to the restaurant to see if it was handed in they replaced it immediatley.
I didn't want to carry them around the parks, and you can't use them at the water parks as they issue their own mugs with a bar code which activated the soda machine.
Well worth the money if your staying for a few days or more and enjoy an early morning drink.
Hoe this helps