Andrei's place is indeed a great place, super efficient and clean apartment with a window front and a cute terrace that overlooks the roofs. Its just a block from the subway, 2 stops from the Innere Stadt (Opera) and a few more to go to Schoenbrunn. We took the bus 13A to the pedestrian shopping street that stops in front of the door. Breakfast and dining places around the corner (Budapest Bistro and Silberwirt). Communication was also great.