i love the first floor and especially the old couches and armchairs - something thats too rare in viennese cafes i think. it creates a real laid back atmosphere and looks much better than any lounge-cafe/bar with it's all too fancy - new - con-tem-po-rary de-sign style.
plus the ronahi has a good assortment of various coffee as well as delicious - mike mentioned it - mediterranean food.
the only thing i dislike are (quite new) the opening hours, starting from 5 pm to sometime during the week (i don't know it for the weekends). that's a little restricting.
i didn't know that they've got DR PEPPER. man, i gotta go there soon again keeping this most important information in mind!

when i was looking for breakfast yesterday in the early afternoon i came by there and went in for the first time since then. it was the first out of four cafes at this time on sunday that wasn't completely crowded. old furniture, chilling music (electronic-jazzy), nice atmosphere and prices quite o.k. i had a classical wiener frühstück (coffee, bread role, butter and jam, egg) for 4,90 - because i was kind of hungry. if i wouldn't have been hungry i'd have taken a regisseur frühstück - maybe the coolest breakfast i ever saw on a menu: kaffee, tschik (coffee, cigarette) for 2,90 (or so). that's movie nerd breakfast i guess.