I had great time! The room was exactly like in pictures. It was comfortable and cozy. The windows were big, so I got a lot of natural light during the day and the shutters kept the streetlight away during the night. I had a shared kitchen, but was mostly only one cooking there. Kitchen had everything you need. Also the cleaning service by Philip was on spot. He did such a great job, 100% better than I would have done :D.
The location was perfect. Public transportation nearby, but I rarely needed it because everything I wanted to see, was basically within walking distance. Oh, and also the wifi was great. I was working remotely during the day and my internet worked perfectly without any interruptions. If I ever go back to Porto, Sandra's place is a definite revisit.