Marie was absolutely lovely. She is such a friendly, outgoing person and will immediately make you feel at home. I was only there for one day, but if I ever needed a place to stay in London I would definitely go back to Marie's place.
Her house is super clean and very cute. The apartment is located on the Piccadilly line and you can get into downtown London is about 15min on the tube.
The location, the room itself, and the host (probably the three main determinants when picking a place on AirBnb) are beyond fantastic. Highly recommend.