The flat near Republique is easy accesible from the metrostop. It has everything you need, although three people is the max I think to stay. Lovely area , nightlife, in summer the place de la Republique is full with activities, kizomba and so on. Check out restautant favela chic for great brasilian food and dancing. If you are fit , you can walk within 30 min to Centre Pompidou , or Notre Dame, or Louvre. The bakery nearby is open day and night and the supermarche has everything you need. The area around canal st Martin is really hip, nice little boutiquestores. I would stay here again .