Exchanges between Jonathan Coleman and Labour's deputy leader and health spokeswoman Annette King have become compelling.
That's not for the fireworks. Dr Coleman's repeated taunt that Ms King sent cancer patients to Australia during her time as Health Minister ensures there is real feeling.
But his flat, croaky delivery and penchant for citing statistics ensures questioning rarely boils over.
There is pressure, however. Ms King has highlighted a string of negative health stories in the media, a recent example about cuts to home-help for the elderly.
Other attack lines have included patients waiting in the hallways of Dunedin Hospital, and people sent back to their GP without a specialist assessment.