They have made quite a few stupid mistakes in their first year, winter fuel benefit is a prime example. The mistake here was not the idea it was the implementation. Why should we give the cash to a wealthy pensioner, yes they do exist, but the current means testing approach is appalling and difficult to complete especially by someone in there 80's However, their biggest crime was the promise to not raise taxes, so they've screwed business and we are now seeing a stagnating jobs market and little or no growth.
My biggest frustration is their inability to get a coherent message across, though that's a fault with most politicians, take immigration, Pondrew's comment on paying millions in taxi fares for asylum seekers, that's just from the mouth of the right wing haters. Less than 9% of immigrants are asylum seekers of which 5% do it illegally, The other 90% have visas to work (25%), study (50%) or spouses/family (10%), of these visa only those working in healthcare have access to free NHS treatment, everyone else has to pay through the immigration health charge. The vast majority of immigrants with visas add to our economy, they are not a burden to it, that's just a lie from people who want to con you into believing that they want to make your life better, by enriching themselves.