Our stay at Alejandra's place was really enjoyable. Actually, there was not a single negative aspect.
She is a great host, always ready to help out with whatever you need. The apartment itself is spacious, originally decorated and super clean. There were also some unexpected extras like bread, water and juice on arrival, which were really welcome. Location is also really central and if you plan to explore only the city center itself you can walk everywhere easily. So AAA rating from us.
If you travel as a couple, one thing that you might want to clarify during booking is which bedroom to use. One has a single 1.40 m mattress (in case you like to cuddle) while the other has two standard size single person mattresses (more spacious but cuddling is not possible unless you like to sleep in between the two mattresses, learned that the uncomfortable way).