Dont look further if you want a nice location and a great host.
I stayed in Sadakat's flat with my twin sons 7 years old and wife. Flat was exactly as described. Very close to metro,and bus stops with one stop to London center. Markets and restaurants are close by, a hundred meters to Portobello. Sadakat is a great host, taking care of anything you require just minutes after you send him an e mail. He welcomed us into the flat and gave us a very thorough information about the flat and nearby facilities. I am 100% satisfied with this stay.