This is a beautiful apartment. The kitchen and bath are very stylish. Unfortunately I visited in the summer. The outside temperature was in the mid 80s (F), which translates to about 30C. My Uber driver said the Paris temperatures used to be between 23 and 26 C. The city has regulations preventing outside penetrations in the older buildings. So there is no air conditioning permitted in this building. It is unlivable in the summer. The temperature in the hallways was actually lower. There are portable units (such as Dyson) that work very well without outside ducts required. The owner refused to purchase one.