Helenas place was okay. She greeted us with juice and a snack which was so kind, and gave us local recommendations. The wifi was very slow, however, and instead I used cellular data in the apartment which was faster. Also, there was dog hair everywhere and it smelled a lot like dog, and we had white hairs all over the floor. There were also several mistranslation issues, so if you do not speak Portuguese you may have a difficult time communicating. So, make sure to double check everything if possible or know a bit of Portuguese before you stay here to know what she means. Other than that, we enjoyed our stay. The location is central, next to both metro and bus stops, which made it so incredibly easy to explore Porto. If the place had been cleaner, had better wifi, and if she spoke more English to avoid any kind of mistranslations, this would have been the perfect apartment. She truly has a kind heart.