Warren House is a beautiful hotel in a very affluent area of London. Steeped in history, wish I could have spent more time but was away on business. Staff were super helpful and friendly. Hotel has a strange policy of photocopying your ID and credit card, which isn’t normal in the UK, at least for British citizens.
Food was excellent. Rooms were warm and modern. Mine wasn’t the biggest and bathroom was very small with a very cold floor. But relatively minor issues for 1 nights stay. Would definitely return.