Elsa’s flat is very beautiful, comfortable and clean! Perfect for 1 or 2 guests. Also located in a very central location, within walking distance to many great restaurants and coffee shops. The ceiling - ahhh- it is amazing and being lovingly restored. Elsa has a eye for decorating, so it was a lovely place to stay! Elsa was very responsive and generous with her time. She met me late in the evening (after 11:00) on my arrival day and walked me to some close by restaurants.
The only, minor, negative for me was apartment door is located in main stairwell so it was a little noisy at night with people walking up/down stairs, opening/shutting doors. But quickly subsided after everyone settled inside.
Overall it was an A+ / 5 star experience and I highly recommend Elsa’s flat while you are in Porto. Enjoy!