Ligia helps us from the beginning to the end of our stay (1 week) in Porto. She booked a taxi twice, let a bootle for the new year and explained accomodations (restaurant, grocerries) at the beginning. The place is ideal for visiting Porto by walk. We never took the bus or the metro. We just took an open bus tour with boat cruise the first day because of very good weather.
We just have to use the heating because the apartment is a little bit wet specialy when it's rainning outside.
Ligia is always available to give answer by sms to our questions.