Though I couldn't personally meet Linda and her son as they were away for holiday, but her boyfriend Christian checked me in and stayed in the apartment during my stay. He is an amazingly courteous and friendly gentleman. We talked a lot about world politics during the breakfast. He also suggested me a technical museum near Schonbrunn Palace which came handy when I had to wait 2 hour for the entry to palace.
Apartment is nice and same as in pictures. Its a small cozy, clean and private room, well decorated with artefacts. There is a chair, a cane sofa and a diwan in the room apart from the wooden cupboard and some shelves. There was a gassed water bottle also provided. The room is lockable and you get the key along with the main door key which works for the building main door key. The apartment is quiet, even eerily quiet at night than required. At night I feared other people will get disturbed if I change position in bed or go to toilet, literally.
The toilet and bathroom are separate and outside the room. Linda had provided the soap and shampoo also along with multiple size towels. There is however only one hook to hang in the bathroom which should be improved.
Overall I enjoyed my stay there. I wish I could have met them both before leaving.