Marion's apartment is cute and comfortable. To the right out the front door is a lively and vibrant immigrant area and to the left a quieter street with boulangeries and shops. And Marion was full of advice about local restaurants and cafes. The nearest metro stop (which will take you straight to Gare du Nord or Gare de l'Est) is only two blocks away.
The cafes downstairs can be a bit loud late into the night, but close the windows and it gets very quiet.
If we return to the 10eme, Marion's place will be on our shortlist.