Lovely flat, at a great location. Very tasteful and cozy decor, at a great, central location.
Through no fault of the owners, we felt a little cold indoors, even though there was heating in all major areas (Porto was experiencing a major cold wave, plus PT flats aren't that well insulated). However, this was solved with an extra duvet available in the flat (for that exact situation, I imagine).
Overall, we've had a great time in the flat, and will definitely try to stay there again in our next visit.