Marta's place is the place to be in Porto. In the heart of the city just a short walk to Soa Bento rail station, the main square, and Clerigos tower. Restaurants a couple of doors away and a laundromat and more restaurants through the alley to the next street. A mini Mercado and fruit market within 2 blocks.
Marta is a lovely host that knows and loves Porto so she gives great tips about the city and how to get things done. Her apartment is very comfortable with bedrooms and a bath on the entry floor and living room, kitchen and bath above.
It was always nice settle into the apartment after a day exploring Porto and Gaia.