We LOVED staying at Alix & Eleann's! Alix (who also manages this property with Eleann) is so wonderful. My husband and I stayed here while visiting Paris, and he provided us with an amazing list of recommendations (including narro - the BEST japanese-french cuisine that is right by this apartment!)
The apartment is in the PERFECT location, right at the heart of latin quarter. Highly recommend staying here and taking the train / ubers / walking everywhere else! It's the best place to start and end your days in Paris - in the heart of the bar/restaurant scene.
The apartment itself is well stocked and beautiful - such a perfect little home away from home. It's perfect for two (though not more, in our opinion) and we loved all of the little amenities Alix and Eleann had left for us (including a nespresso machine and assortment of teas!)
Alix even gave us the recommendation of his own local tailor when my husband's jacket button broke - truly the best host you could ask for!