Teresa is definitely a great host. She took time to welcome us and gave us various tips about Porto and the surroundings. Besides, she was flexible about check-in and check-out times.

As for the apartment itself, it is well located. Close to the central hub of Porto metro network and at walking distance from the historical center.
Be advised that the apartment is part of a bigger one so that your closest neighbors are other travelers. The bedrooms are not side by side (each at one end of the apartment with the kitchen in between) but they are not truly separated rooms (though it was not a problem for us).