Karin's apartment is centrally located with most of Lisbon's attractions within walking distance the public transition options to take you beyond.
This is a great place for a family or a group of friends traveling together. The apartment (and building is quiet) and located on the 1st floor of the building.
My only issues were a small amount of toilet paper provided, one heating unit did not work in one of the rooms and hot water in the shower ran out one morning.
Regardless, a great place to stay while in Lisbon.