Regarding the amenities, the place is very well decorated, and was 100% accurate to what is presented in the ad. It's one of those places where you are comfortable staying in and enjoy. In my case, I was passing by the city and was looking for a place to sleep, which was delivered, as the bed was really comfortable and the place is quite, even though it's located in the city center. The check-in process was easy enough, if you're looking for a self check-in experience. I'd definitely consider coming back, on other trips to Porto.
Nonetheless, I'm currently going through a dispute on Airbnb with the Host, due to a demand for locksmith services payment. I would advise you to be cautious on where you leave the keys (the safe box provided may not be that safe, in my opinion), or make sure you document by video the check out process. In my case, the keys disappeared after I checked out, and I'm being asked to reimburse the locks change. Other than that, the overall experience was nice.