As I said, I'm with talk talk, and get no problems whatsoever...
Here's a screen of sabnzbd from most recent downloads:
Screen Shot 2012-02-17 at 09.35.58.jpg
As can see, fairly decent speed. Just downloaded latest ultimo beta image ... 50mb in about 30 seconds...
Been with em for about 3 years now ... only ever had 1 or 2 problems, and all sorted quickly... They have a talktalkmembers support forum where they have support agents visit there and help with problems. Always found that better than using the phone support who usually just follow scripts!
However, I would say it's best to try and get answers from people in your area... I know some people who have had lots of problems, because their exchange is over subscribed with talk talk...
Any problems are usually reported here:
Code:
http://www.talktalk.co.uk/service-status/
According to their exchange checker, I should get 10.85mbps, but I connect at around 20mbps