I very much recommend it if you manage to find some!
I remember it being entirely unique as far as ice cream goes. I even remember it having a bit of that characteristic spicy kick to it.
Edit: tried looking around the internet for any clues as to kiwi ice cream producers, but I mostly found recipes for home-made (which is not a bad idea, ngl!). All I can remember about it is that it wasn't pre-packaged - always got it served in scoops, on the spot. So, yeah... may actually be "extinct" :(