The location of the apartament is great and it has all you need if you plan on staying a couple of days in Porto.
One important thing to note, the parking spot is at -3 level. It might not seem a huge deal, but if you are not comfortable parking in tight places, you might find this a bit overwhelming.
Also, there is a late check in fee of 40 euros if you arrive after midnight. This isn’t mentioned in the description which I found a bit annoying.