I can not understand the review below referring to the welcome of the owners as 'glacial'. They couldn't be further from that description.
I booked 2 nights at 4 Highbury Terrace in September for my Mum and Grandma when they came to visit me in London. Living in Highbury myself I was happy to find somewhere for them to stay nearby and I was not disappointed. The rooms are clean, bright and functional. The location is beautiful and very easy to get into central London from.
The owners were extremely friendly and made my family feel very welcome in their home. They really enjoyed their stay there and have said they would recommend it to their friends as a great place to stay in London. A nice change from the usual over priced hotels I have had to put them up in before.