We booked his apartment for a 6 nights stay. I would consider it to be best for its location. A super store was right opposite the apartment where you can get all daily use stuff. Metro station is 2min walk.
A big transport strike started the day we reached paris. Most of the public transport was off. But this apartment saved us. Only metro line 1 and 14 were working. The Bastille station(metro 1) is 5mins walk from the apartment. We travelled the most by metro 1. And we have most of the attraction points connected to metro line 1, so it was a life saver for us.