This place was pretty much perfectly as advertised. The pictures gave an excellent idea of the size of the room, and the location is of course the biggest selling point. More on both of these below:
Location: Only a few minutes away from the metro/underground, makes it easy to use that for getting around London, or as a nice backup for getting back after a long day of walking. It's also remarkably quick to get to the London Eye/Big Ben as well as other fun sites like Graffiti Tunnel. It's very walkable to get over to the other side of London too (St. Paul's, Tower of London, etc.) though a bit longer. Based on our London activities, we would say this was an ideal location to easily get everything in without needing to rely on public transport.
The Place: While small, the place was just right for two of us to stay comfortably. The room had a small table which helped with planning our day-to-day activities, and a tall cabinet for storing clothes and items. The bathroom is shared, but was always super clean and nice to use. The place had the host and one other group staying in the apartment but we never had to wait long to use the bathroom and usually it was completely unoccupied. With others staying in the apartment, you should of course keep in mind that will come with occasional noise going in and out of rooms, but nothing long or very loud. We rarely saw others around and it felt almost like we were staying in our own place most of the time.