I've been perusing their site. Seems to be rather more technical than most.
I especially like the bit about their battle with BT over BT engineers charging for Special Fault Investigation (
clickey).
Anywho, I was thinking of transferring from Zen internet because their download limits are fairly pants for what you pay. Plus they are being very slow about migrating to 21CN/ADSL2+ (although it seems like that's a mixed blessing).