Some people don't like it, but I do. Cute interior decoration, attractive wait staff, good food for a decent price, and a killer cocktail bar in the basement. What else does one want?
The only thing I could complain about is their supercomplex menu with various groups of dishes coming on- and offline at certain times. I once managed to be in the 60 minute time window where there was, basically, no food. But meh, it's pretty rare.
If someone knows a place with better pad thai in Vienna: let me know.