My boyfriend and i stayed at Soni's place for one night. The flat is about 25 minutes away from London Eye (walking distance ). It is located on the ground floor, so make sure you pull the curtains as occasionally there are people passing by. It is very quiet though.
Soni is an amazing host - very friendly and full of useful tips. He made our stay very pleasant - he welcomed us warmly and even offered to a snack for us in the afternoon. We would definitely recommend his place for short stay visits.