The SID's and STARS aren't the real problem.
It is definitely whoever the turkey was that designed the joint, quite obviously without consulting any other airport in the world!
Taxiing around, particularly at night in rain (happens a lot), is quite a challenging exercise at times. (putting it extremely mildly)
Parallel runways too close together that can't be used at the same time.
Whoever designed the taxiway designators needs to be shot.
Whoever decided to call a runway that is a taxiway a runway needs to be shot (yes that is correct. That is how confusing the joint is)
The taxi instructions given are confusing due particularly to the runway that is a taxiway but is still called a runway.
Runway markings are strange.
If AirNZ designed it, I am glad I don't fly for them.
By the way, don't compare it to Christchurch. It is very simple to get in and out of. It is basically a small airport with some big jets coming and going. Nothing complicated or annoying (Except for the bloody interference on the ground freq!)