First, let me say that Ana is just FANTASTIC. A very kind and communicative person. She gave us a lot of tips about places to visit and places to eat. The house was very clean and looked every bit like the pictures that are shown on the website.
There are only two cons regarding this place:
1) Wifi - is quite bad. I could not use Whatsapp voice calls and video calling was just impossible. When I brought this up to Ana she was quick to apologize and tried to reach the internet provider. But, nothing could be done. This was costly to us because we lost a lot of money cancelling our stay as we were refunded a very small fraction of the cost.
2) The location - although is downtown and historically important one has to be very careful walking around here after sunset. Quite a number of people advised us against waking towards Plaza de Armas later in the evening. Also, there are no major "nightlife" around here. Everything shuts down.
However, all said and done, it was quite convenient to walk to the museums and the central plazas.