I had an amazing stay with Simona. The area is quiet, peaceful, safe, and beautiful. There is a very nice supermarket and gym nearby. The building's central London location made walking everywhere and accessing everything in the city easy (and there are two subway stops and a bus stop nearby that makes traveling around London even easier.)
The host is a wonderful and warm person who I am glad to have met. If you are looking for a place to stay in London (especially long-term), stop looking and book this place now. I plan to come back when I'm next in London and would give it more than 5 stars if I could.