Good points:
Juan Carlos is a perfect host, very friendly and easy to communicate with!
The apartment is very well located, super close to Lavapies, and just 15 minutes walking to the center;
It was very quiet even during friday night!!
Bad points:
To be honest I won't recommend anybody to sleep on the couch as it's very very hard even to seat on, but the bed was fine;
The doors of the bathroom aren't completely closing, it might be not really nice to do the "big one" when your girlfriend/boyfriend is on the bed just two meters away in front of the toilet :D