Our stay in Porto was really lovely. Joana's apartment is super nice, clean, in walking distance to pretty much all places in the city, has everything you need for your stay and i'd say it is actually bigger than how it looks on the pictures.
Joana was a great host, providing us with all information we needed. We got a whole map full with notes on what to see, where to eat, drink, dance, shop...
Communication was also really easy and super quick.
We'd definitely stay at Joana's again! Recommended!