Denys's room is inside a building called Younique Living, the room is very small but clean and has everything you need for a short period in Vienna.
One really bad point is the position of the room: there are no blinds and the sun light enters from the first hours of the morning (5 AM), so if you can't stand light I strongly recommend to bring a mask for eyes with you. The room is also very hot in summer. For the price I expected something more, I don't recommend to rent it in summer.