The apartment is amazing located, right next to the train station and metro station at Sao Bento. The location is pretty much the most central part of town, with all the must see local sights ( which Vitor kindly pointed out on our arrival) 10 minutes top from here.
Its very good value for money, no thrills, clean accommodation.
If visiting, you must visit the pastelaria downstairs, itself and its cakes are very attractive and taste as good as they look.
One thing to consider, if you have difficulty sleeping in noisey environments, the apartment is located in the centre, next to a train station. So expect a little noise.