Congratulations, nice upgrade! Hope you enjoy it. Don't worry about the Butler, he will let you know what his services are - we've had one a couple of times and they have been fine and taken good care of us. We usually have a cocktail party in our suite at some point, and he takes care of that sort of thing, refreshes your bar/refrigerator, makes dinner reservations for you, things like that. They support the room stewardess somewhat and take some of the burden off them. If you order room service, your Butler will bring and set that up as well.
Enjoy!!!