We only had one full day in Vienna. Roman's apt was delightful and furnished with charm. After keeping up with three 30 yr olds in Berlin and Prague for a week, Roman provided an apt that was serene and restful. The bed was so comfortable we sighed with relief :-) The stocked fridge was convenient and fairly priced.
The 2 women at the cafe 2 storefronts away were extremely friendly and helpful. Friends of Renata. The formal restaurant across the street on the river, located between the two staircases provided us with an outstanding dinner. It's name began with "Otto." Highly recommend the "fried meat." Much better then the description. Lightly breaded juicy steak with horseradish...yummm. With just one full day, we did utilize the double decker tourist bus. It was a great way to see the highpoints of the city quickly. Multiple stops with the ability to get on/off easily for 24 hours. Does end around 2100 each night, with diminishing # of lines with the late afternoon/evening.
Would absolutely return to Vienna and Roman's apt for a longer, future stay !