I loved staying at Alain's place. The neighborhood is perfect--so many great restaurants and notable landmarks within steps, and in a quiet enough corner that I didn't feel overrun with tourists every time I walked outside. There are multiple metro stations within a five-minute radius as well, so getting around the city was a breeze. The space itself is small but perfect for a solo traveler; there are a lot of stairs, which is to be expected (especially in Montmartre.) The kitchen and bathroom are quite small and there isn't a ton of storage space for toiletries--none whatsoever in the shower itself--but I managed just fine. All in all an ideal place to stay for a week in a truly incredible part of Paris.