I stayed at the apartment for a few days with colleagues attending a conference in Porto. For this kind of visit it is ideal; there's a living room where you can sit together, but every room has its own bathroom with shower for some privacy. The design is modern and the rooms are very neat and clean. The location is quiet, and relatively close to the port houses area. It is a bit of a climb to go back from there at night, but a nice exercise is always good after eating so much delicious Portuguese pastries and food :). I can definitely recommend this apartment.