I spent 2 days and it was a restfull stay. The room feels bigger than on the pictures because the walls are very tall.
There's some things I find that could be improved (have shelves and clothes hanger hooks).
Except the fact I never get answered when I ask what was the good wifi of the 4th level (I was given the wifi of the 3rd level), hosts were answering quickly. I recommend this room for whoever is looking for a short and well located stay in Porto.