Perfectly situated as stated in the description. If you're sensitive to noise, know that you are on main cobble stone road, which makes every passing car, truck, and bus very noisy. So just be aware of that.
Other than that, the apartment is very modern, and spacey. Hot shower, comfortable beds. Only a 7 minute walk down to the river which is nice, lots of restaurants surrounding the area.
Note: When you are leaving, make sure you unlock the building door first, then go back to the apartment, leave the keys, close the apartment door and then leave the apartment. We got locked in the hallway, but completely our faults because we forgot. So don't be like us.
Overall, we had a nice stay, love Porto, and can't wait to be back. Can't really get a more centralized location.