Niko's apartment was a very nice place to stay in Athens. It was clean and comfortable, in a convenient location 10 minutes from the nearest metro station, and there were many cafes and restaurants around. The key system to get into the apartment, however, was not so convenient. It took four different keys to get inside, and the one for the front door of the building was very troublesome, which we were not warned about. Additionally, the host sent passive aggressive, unprofessional responses when a problem occurred and he had to do his job as an Airbnb host to resolve it. So, although this apartment itself was very suitable for our stay, I would not choose to interact with this host again.