You should get around 17Mb, the same as the ones you share with that have a TT line. The speed estimates for adsl2+ on talktalk are conservative I find. But the default profile is higher so speeds could be more like estimated at first. I changed to a 6db one to connect @ 14Mb. That's the best I can hope for unless I pay more for fibre.
Edited by Fenris (Wed 13-Aug-14 12:51:34)