There are only good things to be said about Caroline and her lovely studio in Vienna.
Caroline is a great host, responded quickly to all my messages and she greeted me promptly on arrival with a smooth check-in. She had even stocked the fridge with all I needed for the first two or three breakfasts. Very nice indeed :-)
The location of the studio is the best you could possibly imagine in Vienna, right in the city centre and most of the sights are within easy walking distance. But don't worry about noise; being on the sixth floor meant that there was not much noise at all. There is also an elevator in the building so you do not need to climb the stairs unless you are looking for a good excercise.
The studio is exactly as shown on the photos, clean and convenient. Very nice bathroom and a small kitchen with everyting you need. The bed is comfortable and the big window overlooking Graben is beautiful.
I stayed two weeks in the studio and had a wonderful time and would recommend Caroline's studio to anyone looking for a comfortable stay in a great location in Vienna.