I highly recommend Isabelle's Montmartre apartment! It was so nice to have a peaceful, spacious home (rather than a stark hotel) in the busy city. We really appreciated the baguette, wine, milk, and eggs she left for us on the first day - that was so thoughtful! She was a great hostess, leaving shopping and restaurant suggestions; those were really helpful for us as we found our way around the neighborhood. It's a very busy street and neighborhood but the house is so quiet! There was plenty of room for our group of 6 (4 adults, 2 kids). The apt is conveniently located next to the Anvers métro station (line 2) and there are a lot of different bus lines within a 10-minute walk. Isabelle was so patient and gracious with me, answering questions and helping me through all the booking processes. If you're lucky enough to stay in Paris, stay here :-)