Well, it's kind of hard to say was it good or not. Juan himself is very helpful, caring and attentive to details.
When it comes to apartment. First, you have the chance to injure your fingers, because main entrance door to house has very weird and uncomfortable keyhole and you always need to watch your hand. Second, without elevator it's hard with luggage to climb to the second floor via curvy stairs. Thirdly, about walls.... You feel basically everything from inside and outside house, sometimes it feels like you're sleeping in the middle of the street. Kids playground (which in the night turns into junkies and homeless meeting place) is just behind the wall, so expect constant noise and shouts.
Have no comments about amenities or apartment, it's okay, more or less. But shower - maaaaammmmaa mia! It's build so inconvenient that the water from shower falls down mostly on the toilet and floor, making it very dangerous (slippery) and dirty because water stands and has nowhere to go.