I lived on the other side of Austria, in Innsbruck, and only visited Vienna a few times, but I thought it was quite pleasant. Not the most 'happening' place, but it seemed nice.
vienna is a great place - one of my favourite cities in europe (i have never lived there, but have a client there so visit regularly). suspect it's just some weirdness on the part of the original poster.
I live in Vienna, so there's a difference between tourist-view of the place and denizen-view. I don't know if you spent any time anywhere other than the 1st and inner districts, but I respect the fact that everyone has their own opinion. I think its weird to love a city built as a fortress and then as a mass collective to industrial aesthetics, but then again I love big blue sky and buildings with space between them.