The house is at a really really good location,near to many main spots in Paris.It kept raining when I'm in Paris,while since its good location,I can easily go back from many places ,take a rest and go outside again. It's convenient and did help me a lot .And there are many stores (like H&M,Forever 21,Zara .etc)near the house,you can just go out the street and have a cheerful shopping.
As for the apartment,although it's on 4 floor,it's still ok for me,I mean you just need to go up and down with luggage for two times after all.And though it's not big,while everything you may need is included.And Marie is not only friendly to me ,but also recommend me many good place to go. Therefore,I would say that Marie's apartment is really a good choice for any single tourist.