Despite of not meeting Carlos, he was always very kind and with quick answers.
The apartment was great, very brand new and safe, with staff personal 24h at the front door.
Everything in the apartment is new and clean, and there is a great balcony for relaxing.
The location is wonderful if you are going for tourism, many touristic points nearby that you can go walking, and close metro stations that take you to farther places.
The only issue (it depends on what is your purpose on DF) was that the street was kind of noisy during the day. But you can't stay in this location and wish a calm place, it is downtown and it was understandable.
If you are going for tourism, planing to wake up early, it won't be a real problem.
It was a great experience for us staying at Carlos's apartment .
We know that it tells in the description that there is no internet in the apartment, I belive that if Carlos could arrange some wifi it would make tje place even better than it is.