Like everyone says, it's in a great location. Quiet yet close to a lot of great stuff. It's also pretty spacious.
The patio is very pleasant. It is shared but mostly used as a walk-through. The three bedrooms all surround it, and that's where the apartment gets most of it's light. The front (living room and kitchen) is a bit dark and there's no view to the street.
I enjoy and appreciate old things, so the age of the apartment and furniture was good for me. For the price, it really is great place. For more picky folks: as you may expect for the price, some of the upholstery could use a cleaning and the mattresses are very springy but firm, except for one that's very droopy.
We stayed for over three weeks, and, with the lavanderia next door, laundry was not a problem. Leonardo was responsive to my questions regarding cleaning, taking out trash etc.