quickymart: Outram (north-west of Dunedin, btw, not north) appears to have pretty good Vodafone 3G extended broadband coverage and good on XT as well. How much data do you need?
If you'd visited Outram, you'd know the reception is crap. I currently have 1 bar on Telecom, my partner has 2 bars on vodafone (which is a surprise it's normally 1) and I imagine I'm in one of the better areas for reception. Cellular data throughput is typically terrible here.
I have mostly accepted that my connection is crap, and I try to do my bit to reduce congestion during peak times. But if Tim is correct, and chorus has done something that made our connection worse, I think that's unacceptable.