My husband and I spent 9 nights in Wilson and Marielle's apartment and absolutely loved it. The apartment has a great layout and doesn't feel cramped at all. We didn't do any serious cooking, but found the kitchen perfectly sufficient for prepping breakfast and food for picnics around the city. We loved being able to do laundry in the apartment so that we could pack light for our trip. The location is fantastic - even though it's near lots of touristy stuff around Sacre Coeur, if you head the other direction you will quickly run across a grocery store, bakeries, and plenty of locals. Personally, we had no complaints, but there are two things you may want to consider before booking. First, Montmartre is hilly, and unless you plan on driving or taking a cab everywhere, there's no way around hills and stairs. I'd recommend looking in another neighborhood if you have mobility issues. Secondly, the apartment is located in a vibrant neighborhood, and it can get a little noisy when the windows are open (closing the windows blocked almost all the noise). If you are a light sleeper and visiting during a time of year when you'll want to sleep with the windows open, you may want to look for a quieter neighborhood. That being said, we truly enjoyed staying here and hope that it's available the next time we're able to visit Paris!