Overall a very nice place in an excellent location within walking distance to many of Porto's attractions. The bedrooms were spacious and the beds were comfortable. There was ample space to hang your clothes, and lots of shelf space in the bathroom to store your toiletries.
The only negative was that the apartment was very cold, and we were unable to use more than one heater at a time since they overloaded the circuits so the power kept going out and we'd have to reset it. This meant either my friend or I would be very cold at night. The host did say they had plans to update the electrical circuits in the near future, so this may not be an issue for future guests.