I'm passing through Vienna on a trip and have just a short window in the city — I arrive at 4:00pm and have a very early flight out the next day. I know I won't be able to enter any museums/sites, but would like to walk around the city center, visit one of the renowned Viennese coffee houses, and get some dinner before heading back to the hotel. RS recommends the Hawelka, Cafe Sperl, and Sacher coffee houses. Which one would you pick for a first-timer in Vienna? Any recommendations for a restaurant for dinner (preferably centrally located — near St. Stephen's cathedral and/or the Mitte Landstrasse would be great — and not too expensive)? I saw the Figlmüller recommended elsewhere — is it worth the price?