I and a friend had a wonderful 4 days stay at this cute studio apartment. Great location. The immediate neighbourhood has some fab eateries and lovely food shopping. Good transport links; metro and bus stops close by, with the Gare du Nord (and much of central Paris) within walking distance.
The studio has two, comfy single beds. One stores easily under the other so you can have plenty of room during the day. Well supplied kitchen, including a washing machine and dish washer. No TV, but that’s probably a plus!
The studio is on the sixth floor and as the lift only goes as high as the fifth you need to be able to climb one flight of stairs.