Hats off to the Observer for its magnificent retrospective on the Blair Years on Sunday, the centrepiece of which was a magisterial essay from the essential chronicler of those years, Andrew Rawnsley.
Predictably for one who has always been seen as something of a New Labour boulevardier, Rawnsley's ultimate conclusion on the Blair premiership is a positive one.
"Some Prime Ministers merely preside over their time. Better Prime Ministers change their time. When Tony Blair's portrait goes up on the staircase wall at Number 10, he will leave office with a good claim to belong to that select company of Prime Ministers who change the future," he says.
To its credit, however, the Ob makes room for an alternative perspective from historian Dominic Sandbrook, who writes: "Truly great Prime Ministers challenge the status quo. They do not simply accept it. Blair seems destined to be remembered therefore as a consummately skilled political operator with brilliant tactical instincts but no radical or compelling long-term vision."
It probably won't surprise many people to know that I'm with Sandbrook on this. Any leftward shift in the political centre of gravity under Blair has been marginal when compared with the huge rightward shift under Thatcher which, by and large, her successor-but-one has accepted.
For me, he will go down in history as someone who had a historic opportunity to rebuild a social democratic political consensus in the UK, but who wasted his first term worrying about getting re-elected, his second on the disaster of Iraq, and his third on his preoccupation with his own legacy.
As Sandbrook writes: "Blair could have used his massive majorities to ram through radical changes in the health service, reorganise the railways, reconstitute the House of Lords, overhaul the pensions system, reform the electoral system, push for greater integration in the EU, even write a new constitution.
"If he had managed two or three - perfectly plausible in 10 years as Attlee could have told him, his domestic legacy would be uncontestable. But he never did."