Villi was an incredible host. She was so informative when it came to directions. I was given incredibly clear directions from the Gatwick airport to her home and equally clear instructions from her home to the Heathrow airport.
Her home is really close to the tube accessible by a 10-ish minute bus ride, and everything I wanted to see or do was easily accessible from the tube line she lived on; once I figured out the Oyster card system anyway! Canning Town is like 20 minutes out of the city center, but for a young thrifty traveler, I didn't mind. Her tube line is also one that is accessible late at night when all the other lines close; although the bus may stop running, she is like a 20 minute walk from the tube entrance.
Her house is directly across from a convenient store for all your needs. The room was lovely with a bay window and desk, fast wifi, and a comfy bed. And Canning Town is quiet. For the cost and convenience, as well as the incredible communication, I would recommend Villi and stay in this place next time I visit London.