Stayed for quite a few places in Lisbon, but this is a definite favorite. Great location with lots of nice places within easy reach, but without the crowd in the city center. Wonderful locals. Flavia was happy and welcoming and made sure that she would fix any problems if they were there. (there were none).
The apt is a bit better than the pictures, small balcony, nice small "garden" and several heating systems (when in spring).
All in all, would recommend by far above many other places in Lisboa.