I've spent a very nice one month stay at Vienna and at Regina's apartment. Although unfortunately we could not meet in person, she has kept contact with me during my stay to make sure that everything was fine. She answered all my questions always as soon as possible and very helpfully.
The apartment was just as I expected from the pictures. It is a cosy and colourful small flat, with a nice light due to the big windows and I've found the temperature inside very confortable.
The curtains had been replaced with a more opaque shades, so I've never felt exposed.
It is a quiet neighbourhood with very good connections with the inner city nearby.