I'm on Orange or as they call it now EE
It will work in Peebles but that is about it
1 mile out of Peebles and the signal is rubbish very lucky to get a phone signal let alone Internet connection
you end up driving to high spots in the area to try and get service
A mate of mine has the same problem with vodaphone
That is IPhone 4 on 3G
iphone's are great as long as you get a good signal but what will work in one area may not work so well elsewhere