Yassine's apartment is ideally placed for enjoying Montmartre and a good base for exploring the rest of central Paris. If you arrive at Gare du Nord with hand luggage, either from the airport or Eurostar, it is an easy 10 to 15 minute walk. For us it was a much better alternative than a hotel - we could enjoy the experience of what it is like to live in a true Parisien apartment. All essentials are nearby - boulangerie, mini-market, cafes, restaurants - and Yassine himself is on hand either by cell phone or in person if you have any queries or problems.
Note for non-smokers - this is a smoking apartment but do not let that put you off. If you are in Paris for a few days the location and facilities outweigh the whiff of Gauloises!