I was with BT...
I left when they announced the trial went live. I'm now with Aquiss. UK based help (which I have not needed) and they called me at work to check if all was ok because it had been set up but I was away the week and had not used the connection. How good is that?
On top of that, great speed and reliability - and one month rolling contract. Worth the couple of quid a month over what I paid BT. They said (in writing) - not using Phorm Webwise now and won't be using it in the future either)
I'm not against behavioural advertising but I'm damned if I will be phormed as a web user or as a site publisher. Go on BT, launch it, I'm watching for the interception and copying of my intellectual copyright property by you so that your Webwise system can create derivitive works in the profiles of your customers. I will send you the bill annually (don;t want to throw you off and block the site from being phormed too soon do we!)