Fabrizio is the man! My stay with him was great. His friendliness, generosity, and communication was totally genuine. ! Very thoughtful host. The place is nice and as described. I'm a cyclist so I was able to borrow one of their bikes for a day, which was really cool. For reference, I was mainly seeing the historic center (either a decent walk, pretty quick metro ride, or cheap Uber from his place). Their cat, Pichi, is pretty cute, too :)
Potential drawbacks:
-It was a bit hot when I was there (so Fabrizio lent me a fan - problem solved)
-The neighborhood is *apparently* a little bit dangerous, though I never felt unsafe (and Ubers are super cheap, so you can catch one right to/from the door - and I definitely felt very safe inside the building)
-The shower water pressure is low but not a huge deal
-They don't have helmets for the bikes as far as I know, in case you are a safety stickler
Definitely can recommend!