Looking at the coverage map, I live in one of the small pockets of dead zone for 2degrees signal in Mosgiel (15km SW of Dunedin) -- the main tower is 1.1km away in a straight line on the same street I live on, and coverage ends approximately 10m away and starts up again approximately 500m away (coverage coming from the other 2D tower on Saddle Hill)
Sitting at home (using an X5) I am connected to the 2D network but with no signal and as soon as I need to use the phone I switch over to roaming on Vodafone. While I was hunting for a job last year during the test phase, if my phone didn't automatically switch over to roaming on Vodafone, making or receiving a call was a very painful process with drop outs and static on the line. (Now that I have landed a job, my main use of the phone is text messages ..) - for comparison, until I moved to 2D in April 2011, I used Vodafone at the same location and was covered in a full 3G signal 24/7 and my father (who I live with) is still with Vodafone with an iPhone 4 and has full 3G coverage 24/7.
Looking at Vodafone's plans, they now have the Prepay Smart $25, which I assume is their answer to the original $19 combo on 2D, although with 20 more minutes and 50MB data a month for the extra $6 paid.
I am rather happy with 2D and love their innovation and entry into the market which has caused prices to come down (or more 'extras' for the same price), and don't really wish to move, however not being in the zone and having a phone that sits with no signal while I am at home is not an attractive option anymore.
What I am hoping for is that somehow the technicians are able to improve the signal generation from the 2D tower in Mosgiel so that it covers the small pocket of dead zone I live in -- the tower is able to cover parts of Mosgiel that are further away than I am in a strong signal according to the map, so I assume that it is possible, somehow.