The penthouse apartment was very clean and very spacious, with lots of light, but has no penthouse views just looking at the back of other buildings. The location and neighborhood was great.
The closet in the main bedroom was broken, so we needed to take up space store our suitcases in the living room which was very inconvenient. The problem with the closet was reported. There were a few missing manuals for the stove and washer - also, reported to host who promised to replace. There was noise from below cafes at night, for which higher quality ear plugs are required. We ended sleeping with the air condition to muffle the noise.
Overall, though, a very nice unit, and located close to most food and venues, it felt very homely and would use it again while in Porto.