While I am a big fan of apartments for families, I do not recommend them when you have a short stay like 2 or 3 nights in a city you do not know well. Too much hassle organizing check'in, getting oriented, finding groceries, etc.
The Hotel Relais Bosquet is an excellent choice for location, price, and service. Upgrade to a larger room and perhaps splurge for the upper levels with a view of the Eiffel Tower. The front desk is very helpful, Metro is around the corner, breakfast is excellent. I cannot remember for sure, but they may have mini fridges in the rooms. As mentioned, "like" them on FB or hook up on Instagram for free breakfast. Their website has specials which stem from their social media program.