Santiago was out of the city and his housemate was there to receive me. But I wasn't warned about this and Santiago had his phone off or unavailable. Eventually I was able to ask people on the café next door and they told me where it was. But then his housemate (who only spoke broken spanish and french) was a bit strange, asking me if I was going out and at what time I was going to be back. It took a while for me to figure out that this was because there were people on the next room, just to make sure I wouldn't make noise. And he wouldn't give me the keys until I said I would be back before midnight, don't know why.
Not the easiest communication, but once this was solved, all was well and the property is what you'd expect within this price range.