Sergei is a very good host, and his apartment is a wonderful base to use while exploring Mexico City. While it is not situated in the best part of the Polanco neighborhood, it is only a 15-20 minute walk to the better parts. The apartment is very much as shown in the photographs: nice kitchen, small but serviceable living room, two clean bathrooms, and three bedrooms off of a short hallway from the living room. The apartment complex is extremely clean and safe (armed guards at the front door), but the surrounding streets are not the most welcoming, especially at night. The apartment can get hot when the outside temperature is also hot (even in February), but Sergei has provided fans in each room, and most apartments in CDMX don't have air conditioning anyway, so what can you do? The indoor pool and gym areas are clean and inviting. Use of the apartment's laundry facilities is extremely expensive, however, which was something we did not completely understand due to some mutual miscommunication upon check in. I would suggest bringing ear plugs or a white noise machine to cancel out consistent street noise from the often traffic-jammed street below (especially in bedrooms 2 and 3). Overall, the apartment itself is a nice place to stay while visiting Mexico City, and Sergei is a host who truly cares about making your visit pleasant!