The lodgement has a strategy location. In the real center of the center.
However, some precisations have to be done.
The check-in in autonomy is great, but pay attention because when it's written that you can leave your luggage, you don't expect that the place is located in the other side of the city with respect to where you are supposed to sleep. However our bad, we didn't read carefully.
Also, as in the center, in the night it gets really noisy and the absence of double glasses of the windows, will wake you up several times in the night.
Moreover, sticking to the sleep story, the mattress is really really old and bad, one could feel each single spring into the back (and we are average weighted people, 70kg).
Some furniture is warn, a chair broken, a door handle as well, the doors are noisy a lot and when the toilet is in the bedroom, you'll always wake the other up if you use it in the night.
The final point is the absence of the elevator and the 4th floor, makes the access a bit harder but if you're in a good shape you're gonna make it (with the luggages good luck) and anyway Porto is all in slope, so it's gonna be part of the tour.
Finally, for the location, the price and the check-in in autonomy, I guess it's worth it. The cleaning was satisfactory as well, the fact that the furniture is kinda oldish make it make not really noteworthy but nothing to add.
It was a nice stay, to be repeated with a new mattress!!