Marta is an outstanding, lovely and caring host.
We made use of several services like transfer in vintage cars, cruise on Douro river and homemade, traditional Portuguese dinner in the apartment. Everything went smooth and turned up to be an experience for life.
We celebrated "Sao Joao" and it was an amazing experience.
The apartment is within walking distance to shopping in Rua de Santa Catarina and even a glas of cold white vine (preferably Vino Verde) in the Ribeira area.
Also make sure to visit a port wine cellar.
I will recommend the authentic Ferreira Cellars in Vila Nova de Gaia. (Marta's mother supported me on that choice. She is, by the way, also an fantastic lady.)
Then take cable way to the top of Ponte Luis I bridge and enjoy a glas of "Portonic" and the view in the restaurant before you cross the bridge on the top level.
When you have crossed the bridge, walk straightforward and take a taxi from São Bento railway station back to the apartment.
To have an easy living in the City of Porto I recommend that you make use of Marta's services. We felt everything went smoothly as "a knife into hot butter", as we say in Norway.
We where a group of nine people and had a lot of space in the apartment. The apartment was clean, bright and had a fantastic view.
And yes,- I can strongly recommend Marta and her apartment!