The location is excellent, few minutes from bus and metro stations. Good neighborhood to find local restaurants. We mention very good grilled chicken on Rato place just around the corner. Wonderful bread and pizza at Crouton in front of the door.
The apartment is plenty of space, lounge and kitchen very pleasant and lovely patio outside to dine quietly under a ficus at night. Note that the rooms are open (without door) witch was not really an issue for us.
João was absolutely quick to answer and available for anything we need, in collaboration with the lovely Laura that was waiting for us for an easy check in. Thanks to Paula that came for housekeeping twice: we paid her for extra cleaning as we traveled with a baby, we appreciated that possibility.
We stayed 5 weeks in this walkable area in Lisbon, fantastic parks around and good area for cooking at the apartment in the end of the day, very pleasant stay at João's place.