This was a reasonable place, but I wouldn’t stay again.
On the good side: Ernesto was a great host and always answered any question I had quickly. The place is definitely centrally located and is a short walk from everything in the old city. It was clean and secure.
On the bad side: the WiFi came from a place next door and really didn’t work all that well — connection strength or speed-wise. The faucets didn’t work that well either (water seemed to go everywhere but on me) and the hot water never really got hot. The sheets were thin enough that it felt like you were sleeping on the plastic matters cover, which got sticky given that there was no fan or other way to move air through the apartment.
Overall — I didn’t have any serious issues (safety, etc.) but there were enough small annoyances that I would check around for what else was available before staying here again.