The place is well located in the center of Porto. Everything is easily reachable by foot.
The flat was tidy and clean on arrival. Entry was also unproblematic with a PIN.
A few things to notice:
The images suggest larger rooms than they actually are. In the smaller room it is barely possible to open a suitcase.
The walls in the apartment are the thinnest dry-walls possible and as such you can hear everything being done in the apartment in any room. The mattresses are quite worn out.
The shower was clean but quite loose and it was very difficult to open the bathroom door.
The kitchen was clean but we didn't use it so I can't comment on anything about it.
The kitchen window framing though was black with mold. In the pictures it is hidden by the curtain. It does not smell though so it did not bother us.