Anyone have experience with asking for a late check out? We are staying 2 nights and have a flight at 11 PM on the day we check out. Are they usually accomodating? How about half day rates? Any advice will be appreciated.

I have answered this very same question you posted in the Luxury Hotels forum. In the case you were unaware, it is frowned upon to cross post the same thread in different fora. Just a friendly FYI!! :)