Communication with Ana was good, she was helpful and replied quickly.
We didn't meet Ana but her colleague welcomed us. She quickly arrived when we contacted her and was friendly and helpful.
We had some trouble finding the apartment and better directions would have been useful.
The apartment is in a superb location for sightseeing in Porto. It was very spacious, clean and comfortable, if a little querky by English norms. Not that querky is bad just different.
There was everything you needed in the apartment and wifi was good.
Our only negative was the noise. We stayed 3 nights and every night our sleep was disturbed. The first 2 nights it wasn't too bad and we quickly got back to sleep. The 3rd night was terrible. Music playing until 3 am then drunks shouting and setting off a car alarm.
Perhaps we were unlucky with the noise and if you are out late in the bars etc it wouldn't be a problem.