Elisabetta was a really nice host and I felt very welcomed. I got a key so I could come and go as I wanted. The apartment was really nice and clean. The view to Sacre Coeur is beautiful. It took me about 10 minutes to go from her apartment to the top of Sacre Coeur and have a nice overview over Paris. The Market on Mont Martre is a 5 minute walk. To Gare Du Nord you can take the Metro or walk for about 20 minutes. Coming down from Mont Martre and moving into the central Paris area is about a 20-30 minute walk as well.