There is apparently multiple people behind this account, some speak only Spanish and some can speak in English too. So you can't ever be too sure whom are you talking with since there's no signature after some messages.
At first, before my trip I got a little bit of rude impression, since I asked for recommendations for places to visit/where to eat etc and they refused to tell me, since they said they had everything written down in the apartment. That turned out to be incorrect, I ended up getting the recommendations 1 day after I had arrived. I was hoping to get them sooner, so I could have planned my trip a little bit better.
They also said they would fix the shower and tv in the apartment but didn't.
The man giving me the key to the apartment was really nice, friendly and polite.