I booked this place, and was intrigued, because of all the 10/10 reviews. This place is costly but utterly amazing and impeccable decor, design and service. Imagine staying at the Oxford or Cambridge club, the Harvard, Yale or Columbia club or a fine gentleman's club. That is what this place is. Very stately. It would fit well in Kingsman, being in Mayfair and near Jermyn Street. If you want an impeccable stay in London this is the place. I loved the room and decor. They even had ceramics in the room. The toiletries are Penhaligons. There is a fruit bowl. If cigars were PC these days there would be those, but they aren't. Instead it is House and Garden and Vogue magazine. Staff knew their jobs. I like that. Stay in the main building to be near the American bar and dining. I love the American bar. I am American. I felt at home surrounded by other Americans, how do they do that? haha. So yes, this is a 10/10 stay. It is highly expensive but highly Kingsman stately. I recommend it at least once in your life. Nice cocktail menu too. I suppose the only sad thing is they rant out of oysters on the half shell.