We really enjoyed staying at Denis and Lucy's house. It was lovely and spacious and had a lot of character. The location isn't all that close to Paris' attractions but the metro is literally right outside the door and the trains are frequent so it wasn't an issue for us. There is a supermarket directly downstairs which was great for us and lots of lovely restaurants down Montmartre's side streets nearby. The apartment is in a busy location but it was nice and quiet inside at night.