It's a very well located place and it has everything you need to have a good time and explore the city. Mind you, of you are a light sleeper, like I am, you may find difficult to sleep because the street is busy at nights and there are construction works taking place in the morning and throughout the afternoon.
The place is comfortable for a short stay and it's ideal for a person but I believe it'd be too cramped for two people.
I recommend it for single travellers who want to make the most of Porto and the surrounding cities.