I thought I'd provide an update since my last post here.

I had this flight today and it largely went off w/ out a hitch.

There was a bit of a queue at the T1 transfer desk while a rather harried desk agent tried to work out seat changes for a couple family groups in front of me who trying to travel together for the whole trip through to SCL.
That took about 40 minutes altogether to sort out.

No terminal change for us today. We left from 34 in T1, right next to the GA flight to DPS. Given the transfer desk wait time, the 3 hour window between flights would have fit just perfectly if I'd had to get to T3.

The flight itself was meh. I was in 39C. It wasn't any better or worse than any other A34x coach seat I've been on. It got me to AKL and my bags were interlined w/ out a problem. For the fare, that's about all I can ask for and all I was expecting.