Have used BT before and they have always been very poor. Rented a place and had to use them again! I am within 2 miles of the exchange and only get just over 3Mb speed. My daughter lives up the road within a bout a mile of the exchange and she gets nearly 12Mb speed from another popular isp.
To make it worse, this speed I am getting is an improvment over the original speed! I was getting just over 2Mb speed! This was after constant phone calls to BT, and after about 2 months this was the result!
When I first complained I was told there was nothing wrong with the line....Ha Ha. It took 3 engineers to get this pathetic speed increase!