Recent reviews are valid and justified. Staff is inexperienced, slow and generally uninterested in everything (or so it seems). We were turned away having been told that there are no open tables so we simply waited 10 seconds and took one where people just left. Food ordered was fresh, tasty and good value for money, coffees were strong. Since you don't have many options in or around the museum if you are hungry or thirsty steel your nerves to get through the bad part and enjoy.
An embarassing experience with friends from Italy and the US, today at around 2pm - with the inexperienced and stressed staff, highly unprofessional...15 mins until the order was taken...another 15 minutes until we were informed that the order (3 drinks) got lost... I have been coming to this place for about 30 years and have always enjoyed the exotic green atmosphere of the place and the friendly, competent Service that go so well with this unique locaation of Hundertwasser's Museum. What I had to experience today was agisgrace to the artist, his house, and to Austrian hospitality in general. This place needs more staff and smiling and competent waitresses and waiters who justify the prices of the food and drinks offered. The "Tian" might be the right type of restaurant, but it should also guarantee adequate quality of service.