We were at this apartment as a temporary solution before we found a place to stay in Santiago longer. So this review might not be accurate for all other people.

Christian is very helpful. It was not a problem that we arrived much earlier than the apartment would regularly be available. He welcomed us when we arrived and helped get our stuff to the apartment. He had a public transport card (BIP) available for us and we got a bottle of wine, a bottle of coca cola and some snacks. If we needed any help with anything Christian was available through WhatsApp and phone. Since our Spanish was non-existent at the time, it helped a lot that Christian speaks English well enough that we could communicate well.