The flat is well loacted with an easy access to the U-BANH (5 min walk). You can acess the center in 10 min easily.
The flat is clean and confortable and well decorated.
The kitchen is really nice (everything you need) and special mention to the amazing shower.
Communication with Justina was really great and at the arrival (early check-in accpeted) you have some information on the city and place to have a drink or food.
I recommand it to visit Wien for few days.