Decided to get O2 broadband as I have a contract phone and the discount was a nice perk.
Router arrived on time and migration was quick and painless with the sms updates being very informative. Was up and running in no time and synched at the full 16M which made me a happy bunny.
Haven't had to contact customer support yet but it's a freephone number so can't complain.
Managed to get VOIP to work as well which is a nice bonus, though I don't think they're shipping the 780WL anymore.
Would certainly recommend!