Skip this place. At $500/night, I was expecting to be wowed. Instead it was a sterile, very outdated furnishings and decor (not outdated from a period specific standpoint...which would have been pretty cool). Grounds were pretty plain, and not much going on past the castle structure itself. This despite the fact that they nickel and dime you for "grounds landscaping and maintenance" (the manager's explanation for add'l charges added to our bill).
Restaurant boasts farm to table, but dishes definitely did not appear to follow that claim. Second day we skipped the restaurant and went down the road for a better meal at 1/3 of the cost with better ingredients.
Do yourself a favor and drive by the place, maybe even get out and walk around, then go on to something better, like The Manchester Hotel.