The apartment is in an EXCELLENT location - if you want to wake up and immediately snap lovely photos of the tram, get to the nearest bars/restaurants/cafes/etc then this is the spot for you. Diogo is a very responsive and attentive host, he always responded even when I asked unrelated things (got scammed by the taxi) and bought a fan to abate the heat and the check in was very easy.
That said, the apartment is quite humid as it only has one window (in the bedroom) and so that makes it quite warm/humid which also means your towels / clothes do not dry on time :D and you have to keep the fans on at all times (keep in mind I was there in July, temperatures werent crazy but of course warmer than other times of the year). The photos are old so it's not as bright and spotless as it looks.