The place is managed by a business that runs several apartments, not Miguel and Tati as described. They take up to 4 hours to respond. We had to scan our passports with an unknown app to be able to stay in the apartment and were charged additional fees in cash for arriving after 22 (we arrived at 22:13 and let them know in advance).
We stayed in winter and it does not have heating as described, plus the host was not responsive at all, so the experience was pretty bad.
Beyond that the apartment was very clean and the location is convenient.