Nice shabby-chic looking appartment! Really loved the style of it! Even though you live on a big central boulevard in Montmartre, you hear very very little of the traffic. The old building is not that soundproof (still you here only little), but it is indeed very warm which was especially important for us staying in December. Communication works also very well.
You also have the metro and bus station directly in front of the house. The kitchen is also big enough for cooking and has appropriate equipment.
All in all it is a great Appartement to stay at Paris. We really felt comfortable in it, although it could have been a little bit cleaner.
I can definitely recommend it!