My new husband and I stayed at Claudia's place for 3 nights after our wedding at the end of September 2017.
Claudia herself is very lovely and helpful with lots of recommendations for food and things to do! We tried a couple of her restaurant choices and they were both excellent.
The apartment has a great modern interior with a bit of a rustic feel to it. It is all very new and very clean and was perfect for what we needed. There is a cute living room area with a sofa, dining table, next to a fabulous kitchen area which has everything you would need if you want to make nice meals at the apartment. There is also a great view out of the nice big doors which can be opened fully to enjoy the view.
There is lots of storage in the bedroom and the bed is very comfy! In the bathroom there is a standing shower which was great, and lots of thoughtful things that you are likely to forget on a city break such as cotton pads etc.
The location is great, right in the middle of all the areas you would need to visit - we walked everywhere no problem. I would definitely recommend this apartment to anyone visiting Porto!