Tiny flat in the heart of Montmartre in the middle of all the action. Much better value than a hotel room. Building is quiet but the location is not; in summer, you will hear happy, celebrating tourists for much of the night, and, if you are lucky, very talented buskers for most of the evening. Open up the windows and enjoy.
At the top of 6 sets of stairs so be prepared to climb. North Americans with 3 suitcases a piece will likely not appreciate it. Backpackers like us were fine.