My pennies worth- I did this from ED to T5 on Sunday leaving at 5am, Camberwell, Vauxhall Bridge, along the river passing Earls Court, left, then straight there, arriving 6.15am, plane landed 6.49, out of customs at 7.20 all good. Nice terminal, first time there but i found it to be stinky of fags (ciggies i mean).