I converted to 'Plusnet' at work after much hassle with AOL, never really looked back. Went over to fibre about six months ago, reasonably close to box and regularly get 70+ down, 20+ up.
Decided to do the same at home, told to expect 60 down, 18 up.
However, that proved to be very optimistic, and due to the distance from the fibre box, I get 37-44 down, 12 up. They refuse to do anything, saying that BT need to install more boxes.. Oddly, they are owned by BT, so slightly miffed by that.