Vienna was for us a huge delightful surprise. A well-preserved, clean city with ample, clean, reliable public transport that was reasonably affordable.
Vienna was more expensive than we anticipated but not as expensive as other capital cities such as London or Paris — however I feel that we got what we paid for.
If you are a museum buff there are ticket schemes that allow you to pay in advance and get some discounts on most entry tickets. These would be well worth paying for as almost all of the major attractions charge for entry = allow 15/20 euros a head for adults — more if you want a guided tour.
Eating out is also expensive in comparison with Lisbon and the rest of Portugal and we found it hard to find authentic Austrian Cuisine — allow at least 50 Euros a head per meal — not including wine or dessert.
There is no such thing as a quick coffee — however their coffee confections and alternatives like herbal iced tea are to die for. These two at The Medusa left no change from 12 euros.
Mr P has iced cappuccino, I have iced lychee and lavender tea — both were amazing and were the height of our culinary experiences here.