Just after changing mine last week. Asked several VX dealers and they came back with 380-400 for the pads alone (front and rear). Then went to a friend who is a manager in Kwik Fit, they checked my pads and disks (front and rear) quoted 330 pounds. I'm happy enough. As well as that vauxhall wanted 40 pounds to adjust the electronic handbrake. In the garage they did it free of charge, I was talking to the mechanic and he adjusted it in 10 min.If anyone has a problem with electronic handbrake, in antara at the rear hubs there are rubber circles which pop out and you can adjust it with a large screw driver without any problem. My handbrake was holding the car facing downhill and wasn't if its facing uphill.
P.S. Changed pads and disks at 32k miles.
2012 Corsa Limited Edition
2012 Antara Exclusive FWD
2014 BMW X6