It's a perfect room for 2 people and for staying in London for a couple days. Specially if you are going to visit the city. Yeah, it is small, but if you organize yourself a bit there is room for everything. When the bed/sofa is closed you have plenty of room to have breakfast and get dressed comfortably.
The toilet is a bit tiny but for a few days is more than enough. On the other hand the shower is quite wide.
What I liked the most was Jane, she was really kind to us, gave us some tips to enjoy the city and how to get there easily. She is a really nice host.
We specially loved some details such as some welcome biscuits, the water bags to fight the cold, a very good Wi-Fi connection or her lovely cat Mila. And also the fact that every time we got come they both welcomed us!
Really good experience for our first time with airbnb!