Datapoint regarding those traveling with two children: with my spouse and two children (7 and 3), the app showed nothing available. I called the Globalist line, and the rep confirmed, but I asked her check with the hotel. A very friendly voice came on from PH Vienna, and she noted that they could squeeze our party into a 1 King Bed Premium room, if the younger child were to sleep on our bed. And the Park Suite Deluxe could accommodate as well. I was hoping that the standard suite could fit us, but her solution to our situation was that a sofa could be made into a bed, but the standard suite sofa is a curved sofa, not a straight one.
Was hoping to stay here, and don't want to sleep with the younger child on the same bed...decisions, decisions.