The flat is beautiful,spacious for a couple and spotless.Beautiful views from bedroom window especially at night.
It is quite central but be advised all routes lead down toward the Duoro river so you will find yourself climbing on return to flat ,however taxi are readily available and very reasonable 5euro from centre back to flat at night .
Marcia suggested a small restaurant 8 minutes walk from flat and we ate there 2 nights but theres a great choice in centre of city
Overall a very enjoyable stay in a beautiful flat and a stunning city