What did the critics think of Pinter One?

The Pinter at the Pinter season is finally in full swing, with a collection of Harold Pinter's one-act plays finally getting the recognition they deserve. But, what did the critics think?
For the first set of Pinter plays (One For The Road, The New World Order, Ashes to Ashes) The Stage said that 'It’s pretty harrowing stuff and not the most obvious way to launch the season, but its best moments are very effective'. The Guardian continued the sentiment with saying that the production's 'show Pinter's ability to explore the racked insecurity of power', and with The Evening Standard describing the first set of plays to 'deliver a sharp, nasty shock'.