It's a valid evidence based opinion. In opposition he has done nothing. His policies and sums neither add up or make sense and are built on false premises and deliberate misrepresentation of the situation we are in.
To accuse a politician of misrepresentation is rather like accusing a dog of barking.
From what I've seen so far Miliband has fought an effective campaign far more adroitly than he was perhaps given credit for by the media and the government. He was never as dumb as they like to paint him.
To try to frighten the electorate by the prospect of him being in Downing Street seems to me to be a ridiculous strategy.
I think that Miliband may possibly deal with the deficit more effectively than the Tories, because I think he would have to in order to maintain market confidence.