The place was tidy and clean, our room had lots of light and the kitchen had everything you might need. The location is wonderful, right in the city centre, however that does mean that it's quite noisy. Our host, Michael, was wonderful - friendly and always willing to help <3
With all that said, be aware that there is no central heating and so in the colder seasons the place gets humid and cold. But from what I could gather this is the case with a lot of Porto houses.