We stayed at the apartment for 7 nights. We didn't see Kalina however she was in touch 24/7 and was a great host. Her son met us at the apartment when we arrived and explained everything about the apartment. It wasn't really hot during our stay about 28-30°C fully normal with the provided fan. The price is very reasonable for Paris amd the location is great. The apartment is 5min walk from nearest metro station and 10min from train so you can easily reach every destination. Triumph Arc and Champs Elysees is about 45minuts walking. Definitely would recomend this apartment.