Zaheer is a great host. After meeting us in the street he gave us a ride to his flat, which is very well equipped (dishwasher, washing machine, soap, toilet paper, ...), bright and clean. The area is peaceful, there are some good restaurants and stores to buy your own food, and it is very easy to get to the city within 40 minutes. That sounds like a lot, but you'll be thankful to live outside the city for London really is exhausting. Southfields is rather quiet and cosy. Zaheer provided us with juice, cookies, pies, there was hardly anything we could have missed. The only thing bothering me were the trains. Since the tracks are right next to the house I couldn't sleep that well. The trains stop from around midnight to around 6 o'clock. Both, my daughter (11) and brother (20) slept very well nonetheless, but if you are a light sleeper like me earplugs sure are a good idea.
All in all we had a great stay and I recommend Zaheer's flat and hospitality.