Our stay in that apartment was good. Everything was as description says. Apartment was clean. WI-FI was perfect. Owner is really kind and was answering phonecalls when we needed something. We got some snacks to welcome us. If you don't mind 20 minutes travel by public transport, it's a good place to start Porto sightseeing.
There were just some shortcomings during our stay. We had problems with hot water as stove was turning off during taking a shower. It was happening several times during one shower and it was taking long time to wait for hot water again. Also there was miscommunication about parking. Because of it we lost some time and got really nervous as we didn't know what to do. But thankfully everything got well. Anyway, we have enjoyed our stay in apartment.