We shared the apartment between two and used it while staying in Santiago on exhange at university.
It is a great apartment with everything that is needed. It also is only a short walk away from the metro which makes it very convenient. Of course there are noises at night when the window is open but that was expected as it is pretty central in Santiago.
Overall it was a very good experience and I would definetwly recommend it! Communication with the host also worked out perfectly :)