I grabbed it, and the Voda towers surprised me. Pretty decent data flow in my area, just a few drop outs pretty normal for 3G. Overall happy with it.
The billing is a bit weird though.
I am getting charged $4.67 per month not $4 not sure why but HEY this is Ozbargain. 67c gottamitt !
Also, I have yet to see any data recorded at all in their usage meter. It is supposed to be under "unbilled calls" but I got nothing there.
67c Credit card surcharge perhaps?