Porto is a wonderful city, and when I will return I would definitely choose Joy Apartment again.
Very clean and cosy apartment, with good location - only 10 minutes walking to the city center and a wonderful host.
Isabel is a very welcoming person. She was taking her time to explain me what to visit - she has a lot of maps / small guides to choose from, what to do in the city, what are the main events, where to eat (3 minutes from her apartment in a great place to eat pork sandwiches - famous in the area) and what to eat (that´s how I discovered ... :-) Francesinha). It´s a pity that I had no time to visit more and to try all the coffee shops she recommended (next time maybe).
After she offered me all the details regarding Porto, she walked with me to the city center, to show me the best way to get there, and where are some good nearby places to enjoy a glass of wine or a cup of tea.
After all that... of course Porto was a great experience.