A very good place to stay while visiting Porto! Well situated (2 metro stops away from thecity centre) even though the closest metro station is 20 minutes away. Everything was clean and spotless, we even got a bottle of wine as a welcome gift!
The only negative points are the neighbours who were very loud at most times of the day (loud voices and screaming, noises of falling furniture etc). We also didn't manage to figure out how to turn on the heating (it was a bit chilly since we were there in November).
Overall, we would deffinetely recommend this place for your stay in Porto thanks to its great location, cleanness and stylish design.