All of our servers are on a Terabyte connection. You can speed test our servers a here :
Dallas, TX Location
Datacenter: Colo4
Test IP: 174.136.50.158
100MB Download Link: http://alpha.unisonplatform.com/100mb.bin
London Datacenter
Datacenter: Equinix
Test IP: 46.23.65.114
100MB Download Link: http://foxtrot.unisonplatform.com/100mb.bin