Not as impressive as Karlsplatz or the imperial station at Hietzing . . . but not bad. (The Hofpavilion photo is from 2015:)
There are still several of these stations around, all built to a concept by Otto Wagner, the planner of the Stadtbahn between 1894 and 1901. The designs are as particular as Guimard’s Paris métro stations, but on a much larger scale as the stations are above ground. The plain white façades and green roofs are decorated with stylised foliage, flowers and wreaths.