It is an old house, well preserved by the way, in which there are several private rooms separately rented (3-4 people/room) and there are common areas.
The best is the big size of the rooms and that there is free car parking in the street. Also, the host Carlos is always near the house so he can attend your needs.
The house was very crowded in my opinion, with at lest 14 people sharing a small kitchen and two complete bathrooms simultaneously. Also, the living room did not have enough space either in table, chairs or coach, for such number of guests.
The refrigerator/fridge is old and small for this kind of accomodation, with a very small freezer, does not have washing machine (as said), and the spring mattresses where old and uncomfortable, this must be improved.
The location in not the best, you can move easily by car, but there is a walk to the connections to the center and during the night you might not feel comfortable.
You must pay the tourist tax of Vila Nova de Gaia at the accomodation (I have not seen it in the announcement).
In summary, we could enjoy our stay in Porto, but there are better places in terms of quality/price.