The apartment was great for 2 nights in Porto. It is small, since everything is pretty much in one single room.. but we only needed it to sleep and it was enough. There’s a small kitchen with a fridge, but we didn’t use it.
The location is good, in 15 minutes you reach the city center by walking.
The stairs leading up to the bed are pretty steep, they are more like a ladder. For us it was no problem, but it might be to some.
The apartment is located on the ground floor and the window faces the street. If you want the window open at night, it will get a little noisy.