Pros: The host was friendly and met us at the door to show us around. The house matched accurately the description and the photos: is fully equipped, well-decorated, clean, and, although small, very cozy.
The location is 30-40 minutes from central London but is accessible by different public transportation options (bus and train/overground).
The only con was the walls that are a bit thin, so we could easily hear the neighbors, but it's no big deal.