I spent a week in John`s and Masha`s flat and I really had a great time!
Both were really friendly, helpful and were there if I had a question or needed anything. Also very quick with answering my texts! The room was clean and tidy and I fell in love with the silver walls! Lewisham is the closest train station and also DLR which is in the border between 2nd and 3rd zones. It`s really easy to get to London Bridge or Charring Cross stations. Also Lewisham market is very close so anything you need to buy is a walking distance. Greenwich is very close and a favourite place of mine for a coffee or a walk in Greenwich park. Basically a very good place to stay while in London and not to forget on a very affordable price.
Enjoy! :-)