Communication is very poor. If you are not from London or have friends and family here I would be very wary of making a booking for this apartment.
An awful and unsafe experience. Upon arriving I was unable to access the apartment. I tried for two hours to get in contact with the host via air bnb messaging and via the mobile contact number provided. The number did not work despite multiple attempts. Air bnb tried and they also could not reach the host. The air bnb representative was excellent. He even offered to try to get me somewhere else to stay and arranged my refund.