I booked an entire month on this flat and paid for it, everything two months before my trip.
The day before my flight, I contacted Daniela (the host) in order to arrange the check-in hour because she hadn't written yet. Although I tried to reach her through Airbnb, she only answered when I wrote her on an alternate messaging app (WA), saying everything was fine.
When my 12 hour flight landed and I had wifi again, I find a WA message of Daniela sent midflight saying she had to cancel because of some problems on the flat that made it inhabitable and an email from Airbnb confirming the cancelation of the entire trip except for one day. I managed to call her, but she never answered my calls.
She answered by WA message late in the night, saying she wasn't in Madrid and agreeing she hadn't been "totally sincere" about the situation with the flat the day before.
I really don't know about the flat because i have never seen it, but I can say that Daniela is really untrustworthy as a host.