 Breakfast is served is a bar so the tables are not convenient And I would say that breakfast itself is rather expensive and limited 
 The location of the hotel is very good about 5 min walk from metro Close to Harrods and Hyde park We had just a regular room and it seemed a bit small but it s typical for London They have a charger in the room for all kinds of sockets So no need to buy an adapter They prepare room for the night leaving small sweet things 