So-he called an arguably unnecessary referendum, a tactic which ended in personal failure. He highlighted the need for the Big Society, which fell into oblivion. He styled himself as a normal bloke and rode a bike to work, only to be ridiculed when it was noted that his car was following him behind. He was an Old Etonian who surrounded himself with toffs and was accused by a fellow MP of not knowing the price of milk.
He promised change but, on his watch, the gap between rich and poor grew bigger. He oversaw the introduction of gay marriage. He was classed as an articulate speaker but (in my view at least!) was regularly outclassed by "weird" Ed Milliband at PMQs.
That's my take on Cameron's incumbency: what's yours?