I loved John's place. It is well located with bus stops and tube stations no more than 10 minutes away. I enjoyed the daily bus rides across the Thames (Trafalgar Sq is about a 20 min bus ride). The neighborhood has all the conveniences including quality gyms, restos/cafes and a Tesco superstore.
John is also a warm and communicative host. He always stopped what he was doing to check in on me. I plan to stay with him again on my next visit.