You should definitely consider to stay here!
The apartment is super clean, super nice and super beautiful, I'd say it's perfect for one person. And yes, it looks exactly like the pictures!
Sandra and Derek are very nice hosts too. If you have questions of any kind (Where should I eat? What can/should I see in London?) they will help you out. In addition to that they always are up for small chats about art, the city, your stay etc. You really feel welcome and at home when your are staying with them.