Cristina's apartment is a delight!
Very clean, equipped with a fully stocked kitchenette, great shower, comfortable furniture and an amazing little balcony, with a table and chairs we used to sit ad people-watch daily. Rua de Santa Catarina is a pedestrian street with a lot of life happening, with great shops, restaurants and cafes right there - just step outside. There are several grocery stores nearby - so you can enjoy homemade food right there on the balcony.
Cristina's place is a walking distance to literally anything.
Cristina is very pleasant to communicate with and very responsive.
Would love to stay there again if we ever are back in Porto.