Pol's apartment is a unique and interesting space in attic of a Victorian building. Apartment is fairly large, with a separate bedroom and 2 sofa beds in the common area - more than enough space for 4 of us. It has many interesting features and there is a tiny patio (fits no more than 2-3 people) - good for having a drink of if you are a smoker. We were allowed to check in early, and were greeted by a bottle of sparkling in a fridge. WiFi worked great and was fast, so kids didn't have any troubles watching Netflix. Mayfair is a wonderful neighborhood, we enjoyed exploring local streets full of beautiful Victorian buildings. Make sure you don't miss the Mount Street Garden across the street (there is also a nice old church in farther end of the garden - worth a visit). Mount Street Deli, on the Mont Street around the corner, is a great place for breakfast. There are many restaurants in the area, especially around New Bond Street. Many major London attractions are very near. 10 minutes walk to Piccadilly and 15 minutes to the Buckingham Palace. Westminster / Parliament are $8 cab ride. I definitely recommend Pols apartment, and we'd be happy to stay there again. The only suggestion I have is to install AC because on a hot day attic can get rather stuffy during daytime, though there are plenty of windows and it was never hot at night.