I had a great experience staying at Kamal's place in Bow.
I was greeted by Jahed who is a very friendly, welcoming and accomodating person. He's also very fun, if you enjoy a good conversation you'll like him! I had a few problems to arrive at the place and he was always very understanding.
The area is nice and easy to reach central London from. The house and the room are very comfortable and organized. The people I stayed with were also very nice and Jahed made the effort to integrate the people so as to make your stay nicer. Also the price was really good. I really recommend this place if you are looking for stay in East London!