This apartment was so cute! If you like older buildings with cool architecture, then you will love this place. It is definitely meant for one or two people - would not recommend trying to squeeze in more than that. It's also in a great location - maybe a 5 minute walk at most to the south Kensington tube station and on a very safe street. You can even walk to Kensington palace in about 10 minutes. The only problem I ran into is when I had my purse stolen with my keys/phone/credit card inside late one night, airbnb was unable to reach my host or find an alternative place for me to stay - it was after 11pm, so it is understandable that he did not answer, but would be nice to have a fail safe in place in case something like this happens. The host also sent a realtor to show the property during my stay, even after I told him I was uncomfortable with it. I would suggest being up front about the possibility of showings in the description so that people who are uncomfortable with strangers in their room may avoid the place.
Other than those couple issues, the place was fabulous and I would recommend staying here!