This is a very nice room. While the flat is small, for the price range, Marie's place has a lot to offer: a private room, a place to cook, a fridge, and a laundry machine. Marie was a helpful and gracious host. She has a lot of rules, but these are important, especially since the flat brings together strangers in a small space, and the rules I think make it clear what you need to do to get along (i.e. Clean up after yourself!).
I did want to highlight a few things just to highlight things because they are important to me, and others may find them useful too: The room has a functional, and effective, blackout shade, which is helpful for sleeping. While there is no oven, the stove top makes it possible to cook. If you do yoga to exercise when you travel (as I do) this room is too small for yoga, but there's room to do some basic stretching on the floor. (The other two rooms in the flat are large enough to do yoga.) Because this is a first-floor flat, there is ambient noise sometimes outside or from the flat above, and sometimes this was an issue on Friday or Saturday night, but basically this is the case anywhere in London, and in general (although I am a light sleeper) the noise did not bother me. The flat is 5 minutes from the Tube. While I worried about staying in a place mainly occupied by other airbnb-ers, this was not a problem, and I enjoyed meeting people from Australia, Germany, and Poland. Marie was very attentive, and spent the night from time to time between guests, so it was possible to meet her, and she was a remarkably attentive host, given that she does not live in the flat full-time.
I would stay most definitely stay here again, and recommend it to others.