I had rented Claire's flat for my parents while they were visiting me and they loved it. The flat was faultless, very clean and quiet and Claire even left some juice/milk and cakes for their breakfast.
The flat is extremely spacious for London with a lovely garden at the back and also very well equipped (dishwasher, washing machine...).
It is also within 5 minutes of Finsbury park station which takes you to Oxford Circus in 12 min with the Vicoria Line.
Overall, I highly recommend Claire flat.