Great place and great host. I cannot recommend Joe's place enough for your stay in London.
The apartment is new and modern and located just outside of tube station with many direct buses to the city center. The room is very good: spacious, clean, with fast wifi, and especially I loved the rainfall shower in the bathroom.
Joe is such a nice and friendly person. He gave us direction to many good places, allowed us to use his kitchen (which has many modern equipments), and even offered a coffee to us.
We had great experience here and I will definitely stay again at his place.