Martin is an exceptional host who was very communicative during our stay. We had an issue with the hot water and he sent out a technician to resolve the issue that same day. Any time we needed information he was very quick to reply.
This flat is in a lively part of town and is quite close to tube and bus stations, but there is a fair amount of noise from the pubs and street below in the evenings. Otherwise, Martin's flat suited our needs quite well.