It's been a few months now since it was installed. I've been very happy with the service so far.
There was a couple of hours last week where BT were having issues that gave me 50% ploss. Other than that one event everything has been good as gold
Speeds have been extremely consistant, with a real nice 35MB+ on every speedtest no matter what time of day I do it.
Here are some latest figures,
http://www.speedtest.net/result/1113380034.png
http://www.nooblet.org/other/tbb/bt-speedtest_201101... (as requested)
Very happy overall