I had my twins at wellington hospital last year and I was very impressed and happy with the hospital staff. I spent 2.5 weeks in the maternity ward and the girls had a 10 day stay in NICU.
The bad press was down to the hospital being understaffed. I never felt like I was being pushed out, in fact when they discharged me, 5 days after c-sect, and then gave me a bed upstairs in a closed ward so I could stay close to my daughters while they were in NICU.
I had my own MW but was under the Obstetrics team at the hospital as well and I found the care to be great. Yes you don't get the same person each time but you are still looked after.
A friend of mine moved to Welly when she was 20weeks pregnant I know she managed to find a MW but it just took time.
Here is a link for some
Wellington Midwives
Do you know what part of Wellington you'll be based in? There are lots of options for Antenatal classes and if you know where you'll be based then it'd be a good way to meet people.
I moved here from Ireland 3.5 years ago, so I know it's quite daunting relocating so far.
If you have any questions or want a friendly face ( or 3) to visit when you arrive let me know