Ralda's place was wonderful! We had a bit of trouble finding it at first, but once we figured out the Paris metro system and where her apartment was - we realized how perfect the location is! The apartment was a good size for 2 people. Her husband Alex met us and explained everything - he was very nice and welcoming. There is no AC - but they have a nice rotating fan you can plug in that kept us comfortable. The elevator is helpful - with luggage only fits one person but moves quickly. You can only enter the building with a code and it is in a safe spot in the city - we weren't worried at all. Would definitely recommend this place if you are in Paris!
And just so no one else gets lost: they are located right across the street of Metro stop Falguiere on green line. That metro will connect you to any train and allow you to see all of Paris.