I used to stay frequently at the Grosvenor Hotel because of its proximity to the museums and South Ken tube station. The staff were helpful and attentive but the decor had seen better decades. I looked forward to staying in the new Ampersand following renovations. The similarities are only two: the address and a staff that is even more welcoming and helpful. The new decor is clean and modern. The furnishings are beautiful and the comfort of the bed matches exceeds any hotel I have ever stayed in. My experience which was in December could not have been better and I have a new favorite hotel in London.