I agree, switching to BT makes a big difference. With virgin, I rarely got the advertised speed (certainly not on the weekend or evenings), with BT it's stable 24/7 (~60mbit). In addition to that, peering appears much better. Downloading files from US west coast works generally at very good speed, any connections to servers in the US from Virgin Media was often <10mbit.
Apart from downloading backups, I never find myself constrained by 70mbit download speed.
Apart from downloading backups, I never find myself constrained by 70mbit download speed.