I never had a stay with value matching George's home. My 10week stay at his home has been the most comfortable I've ever had during my London visits.
Room is very spacious, clean and has a nice table to do some work. Access to washer, dryer, airer, fridge, wifi. Bathroom is clean, has heater, and is not as tiny as every other stays I had in London. The kitchen covers your basic utensil needs and also some extras like cofee, tea maker. Cleaners regularly visit.
Outdoor is remarkable with the river and city view of central London. Accessibilty is high while also keeping that quiet environment you're looking for. There are many nice restaurants, convenience stores I'd especially try George's recommendations as they're always good.
George was very accomodating to any kind of need you have. He helped me find nice places to explore and restaurants to dine in. He tells you stories and teaches you stuff you never knew. He gave me temporary medicine when sick. He is always eager to help.