The place was cheap and okay. The landlady speaks only Polish and German, but the man we met when we were checking out speaks good English. There is just one thing I have to complain about. There were some forks, spoons, knives, cups and spoons available in the room but they were covered with dust (everything else was tidy).
The location is good, near the zoo and it takes just couple of minutes to walk to Oliwa train station or to bus/tram. You can find local, American, Mexican style food places from the center of Oliwa (& McDonald´s too). There are also little food shops everywhere, but the service is in Polish.