This a gorgeous studio right in the heart of the action in beautiful Oporto. The walls are a in rustic stone, there's a stylish kitchen, comfortable bed, bathroom with lots of closets and so on. Being in the middle of the tourist area mean that street noise can be a bit much, but fortunately, there are double-glazed windows in addition to the regular sash windows, AND fabulous wooden shutters inside, so it's just fine, unless you want the windows open.
The apartment smelled musty when the windows had been closed for some time - perhaps from moisture in the stone walls? Again, it was fine as along as the windows were wide open for a while.
Great little apartment - I'll be back.