This is my second stay at Magdalena's place. It still can be summed up in one word. Location, Location, Location! If Montmartre is where you are looking to stay, I really think being in the shadow of Sacre-Coere is absolutely the best place to be.
And do buy a Metro day (1, 2, or 3 days) pass so that you can jump on the funicular anytime you'd like as you are only steps away! Use the Metro as much as you can in Paris. It is so convenient and easy. Place Saint-Pierre, like many Paris streets, is perfect for just strolling.
We loved it here at Magdalena's place and we will be back again!