We stayed with Mónica and Domingos and their two lovely dogs for five days. We had an incredible time staying there not only due to the great location within the city but also because of their extensive knowledge about it.
Last but not least their hospitality was outstanding. Not in a single one of my travels have I felt so welcome into a "strangers" home.
In conclusion a 5/5 and thus a 100% recommendation for staying in Porto!