To be honest, I felt a bit out of place eating at Roy's because it's one of those restaurants where you're there to see and be seen. I definitely recommend wearing a collared shirt and dressing slightly up when eating here.
As for parking, Roy's has valet parking but it's not necessary as the parking lot that the restaurants and other businesses share is quite large. Plan ahead because the restaurant can get very crowded a reservation might be required.
There's not much more I can say about the food. It's delicious but the downside is that it's pricey and not very filling. Still, I enjoyed the food and would definitely go there again in the future.