Nearly perfect stay in the middle of the old town (very lively, also late in the evenings) of Porto - the tourist attractions all are in walking distance. Many good restaurants and all the shops (also daily needs) are literally around the corner. For fish and seafood I´d recommend to take the "500" to Foz or Matosinhos ("seaside" of Porto).
Our flat was on the second floor of a well renovated ancient building. We liked the bathroom, the bedroom (small, narrow bed but lots of storing capacity) and the living room; the little kitchenette serves its purpose.
The best experience though was the property management by Diana; she is really great and we couldn´t thank her too much!
All in all: highly recommended