There are two reviews for the show on the Diplomatic Immunity page here and here. The reviews are so-so, and the comments at the end of the second review are mixed. Some people really liked it, some didn't at all. Craig's performance was mentioned favourably, though: Leightong Mills is described as "played with bureaucratic brilliance, like a tightly furled black brolly, by Craig Parker". Heh. :)
Sarah also sent in a second picture from the launch, which you can see here. And Throng, New Zealand's excellent TV website and community, has a page dedicated to the show here. Check it out for news and press releases (one for the second episode, amongst other things)!