Is democracy flourishing in South Africa?

This week South Africa has held events to mark 20 years of democracy. Simon Jenkins, writing after the first election that included black people, was deeply moved:

Democracy is an unromantic ideology, but the old girl can still draw a tear. I have never witnessed a political event to compare with the South African election, not even the fall of the Berlin Wall. The silent queues snaking for miles across bush and township were mesmeric…Streets that saw gunfights, burnt homes and necklaced corpses were graced with orderly lines in their Sunday best…

Twenty-five million blacks got up one morning, and decided to put their faith in democracy. Nobody foretold this. Nobody imagined South Africa would go to the polls on a universal franchise in 1994, experience no boycott and no violence beyond what Chicago sees in an average weekend. Yeats should have been there. This was the centre holding. This was the ceremony of innocence undrowned in blood.