Overall, it was a good stay. Mila was a very friendly and proactive host, who contacted me months before and throughout my stay. She also recommended places for good food!
Room has nice furniture and decorations. Room space was enough for two people, but don't expect excess space - apartments and hotels in Paris are generally small. Also remember to bring your own towels, shampoo, shower and face cleansers, otherwise they can be easily purchased from a small convenience store right beside the building.