We absolutely LOVED Cristiano's place. We were received by his friend Gaspar who was really nice with us, he showed us around the house and gave us great tips about the city and specially where to eat. He was also really helpful allowing us to do late check out.
The room (and it's bathroom) have a very good size and the decoration is a total plus. It is also really private.
But the best thing about Cristiano's is definitely the location. It is 2 to 15 minutes walking from every important touristic location in Porto.
Would love to go back to that beautiful city and stay at this room again.