We arrived at the flat early and Pol and Nick had arranged for us to drop our bags off so we did not need to keep them with us for a couple hours till the flat was ready. Mayfair is a great area and centrally located with multiple public transportation options. Flat provides great space for my wife, two 16 year olds and me. Even with warm days the flat provide great cross ventilation. One negative is that there are limited restaurant options in the immediate area, walks north above the US Embassy and East towards Soho are necessary to find more options.