Stayed at Nine Zero as part of our honeymoon to the US visiting San Francisco, Boston and New York. Easily the best hotel and staff that we experienced during our holiday (including one of the five star reputed 'finest hotels' in NYC). We were made to feel very welcome from the moment we arrived until we left. All the staff were particularly helpful espcially the concierge who went out of his way to assist when recommneding local attractions and suitabel bars and restaurants. Would highly recommend to anybody coming to Boston. A true delight to stay in.