A very comfortable apartment in the best location possible!
A nice apartment in a historic building in Barrio Letras, with a decent-sized elevator. Very nice and responsive hosts. A fully-equipped kitchen, nice living room and a bedroom, huge closets and overall very well planned and nicely designed.
Another great quality - super quiet, as all windows are facing the inside patio, which in this neighborhood is a huge plus. WiFi was working well.
Would have to second a review that mentioned a slowly draining sink in the bathroom, but compared to the benefits of this apartment that is very minor. Would also be nice to add some basic stuff, such as coffee, tea, olive oil.
Overall, I would highly recommend it (and already have at work :)).