Kaffeehaus Amadeus is open on Saturdays & Sundays between 11am & 3pm

And then there's the cappuccino!  Without reserve, I can say they make the best cappuccino I have ever had.  Their coffee is in a class of its own, inspiring flights of metaphorical fancy like:The espresso machine at Amadeus is like a Stradivarius played by the hands of a master, and the music it makes is molto allegro!"