We cannot praise Guillaume's flat enough ! It was perfect for us - bright and pleasantly decorated and furnished, ideal location with easy access to main Montmartre attractions, plus cafes, restaurants, bars, food and other shops (chocolatieres !) nearby but in a quiet side street. The flat itself is really cosy with ample room for 1 or 2 people, comfy chairs and very comfy large bed, extra light and feeling of space from the private terrace with glazed patio doors. No external noise at all, only the normal occasional neighbour sounds you would expect in a flat. (Special mention for our favourite breakfast venue Le Pain Quotidien round the corner , providing gluten free bread !)