Been with Vox since fibre went live here.
First, I had a little issue provisioning the line 'cos it was in the middle of the Vuma, Fibrehoods buyout, but they were diligent sorting it out. Second, I had a billing issue which they sorted out with a refund. Their invoicing system needs some work, but I don't put that on their sales or technical guys and the accounts folk recognised the issue and corrected immediately...
That said, I'm loving the service. Started off on a 50/5 and upgraded to 100/10 at the beginning of September when pricing changed. Speeds are consistent and I've not noticed any throttling whatsoever... I'm running around 1,5Tb per month between three of us... Loads of Netflix streaming and I'm now officially addicted to P2P streaming of all live sports, ever.
In spite of my first two points, Vox gets two thumbs up from me.