we are family of 7 and we had a very good time at Adnan's. the communication with him is fast an accurate. the house is exactly like the pics, the house is big and the rooms were spacious.
the tube is 5 min walk and takes you everywhere in london in 30 min or less.
there are a lot of stores and restaurants nearby if you need somethings to buy.
i defently recommend staying here if you are a big group.