With so many Airbnb's in Paris we were suffering from "paralysis of analysis" so we just picked Antoine's in the Latin Quarter. Turned out we chose the perfect place from which to explore Paris for 7 nights.
3 Rue Scipion is good-sized and well-appointed, but really shines with its location. On the mundane side for groceries, wine and bread there is a large well-stocked Carrefour directly across the street and a lovely bakery two doors down. The bus and the Metro are each a 5 minute walk with the Metro Stop of Les Gobelins on the #7 line easily accessible from many other Metro stops so you never have to worry about getting so lost you can't find your way home. (And, of course, Paris is best explored by turning down side streets and getting yourself lost on purpose) Antoine's wireless connection is fast and he laid out two bottles of wine, nice bread and numerous pieces of varied fresh fruit for us upon our arrival.

We never had a problem getting him to text us back as we were arranging the booking and directions. It seems best to take a cab from the airport straight to his apartment unless you are already familiar with Paris and/or you arrive during the daylight. We arrived at Antoine's at 10 pm and it was not a problem for the happy Frenchman.

I would say unless you are just desperate to stay in someplace like Montparnesse or Montemarte, you should expand your thinking and see if Antoine's apartment is available when you get ready to book.

Also at about $120 per night, you will not find a hotel nicer than this in a better location in all of Paris, in my opinion.