I've never stayed GV only LV, but it was the most wonderful experience ever!
We used to wake up in the morning, open our curtains to see the castle and the Contemporary and GF, and my 2 DDs used to wave at the people on the ferry on their way over to the MK! We also used to let our 2 DDs run onto the beach to play while we got our bags ready for the day.
The evenings were even more special - it gets dark and you can sit on your balcony or patio to see the castle changing colours! Absolute magic!