When we arrived it was really hard to find the exact home (we arrived late, so it was already dark), and the host didn't respond. When we found the house, it was dark and, upon knocking, a couple opened the door. They didn't really spoke English, and they seemed really surprised to see us there, as if we were just getting in someone private house uninvited. Fortunately, they were really nice (I wouldn't react so nicely to people appearing at my door at 10pm), and eventually it turned out the host was their daughter. She said she had an emergency so that's why she wasn't responding to messages and she didn't welcome at the place, but I wonder why she didn't warn her parents that there were guests coming?
At the end everything turned out well, her parents are really nice people, and the place is clean and well furnished. Just wishing a better check-in experience, especially after a 12h travel.