I'm in Norwich which isn't a million miles away, it's really good, max out my line almost all of the time, the throttling doesn't seem to be affecting me much, if at all right now.
I got the 50 meg installed yesterday and wow it works fine. I have only really been reading negative stuff in the forums etc and was a little worried. I downloaded a large file yesterday to tes the connection and it maxed out at 5.9MB/s and never waivered. The wireless connection is great too. I just did a speed test and get 39MB/s down and 4.7MB/s up which i gather is not too bad at all. The signal it'self seems strong as i took both my iphone and tablet pc out to the back of the garden yesterday and i had full bars on the phone and 2 from 3 on the tablet. Will update if the connection degrades but as of now all is good.