Great apartment. The exterior of the building hides the nicely renovated interior (slightly odd layout but it worked out fine). It has a nice terrace (though we never got to use it due to the rain).
Great location close to red and green metro lines. These two lines will get you to most areas of Lisbon a tourist probably will visit. Another plus is a parking lot around the corner. We rented a car to explore outside the city and found no on-street parking nearby.
Eva, our host who works for Maria, was great with communication. She was a fireball of enthusiasm when she met us to give us the key. Showed us around the apartment, provided a pdf document with recommendations, then later texted us with links to other restaurants we discussed.
If (when) we go back to Lisbon, I would definitely go back to this apartment.