Zibi's place was my best choice to stay. He is great host. I stayed there for one month. He helped me a lot first day and he was so kind and nice to me all the time. His house is clean and the room is very nice. You could hear the main street from the room, but it was not big deal for me. It's near the center by walk or near to the BUS, DLR, overground and underground stations. You can buy some food in Tesco express or Iceland which are near the house. I totally recommend his place if you want to visit London for vacantion or for business trip, because it's near to everything you need :)