I don't know who Maria is but we were in contact with friendly Matias and Julieta. We arrived early and were told we could leave the bags. The security guard wasn't informed about our arrival though, so we had to go through a long process to be allowed to leave the bags. Since we had travelled all night we were looking forward to the early check in, which we kindly were allowed at 11.30-12, but the room was free at 13.
Unfortunately our room had a lot of MOLD on the curtains with a strong smell and stains on the duvet which you could scratch off (= not washed). The stove didn't work, neither did the remote to the tv and the hairdryer was hanging loose from the wall.
When we complained about this we were able to change rooms the day after. Still stains on the duvet in this room and some mold by the window, but apart from that everything was much better and we had a pleasant stay. Quick and friendly contact with Matias, whose telnumber was in the e-mail from Airbnb. OK pool and gym.