I would rather stay with BT or one of their resellers than give TalkTalk any money whatsoever.
The BT network in that area doesn't even do ADSL2+. Don't confuse TalkTalk wholesale's network with TalkTalk retail - if you bought from Vivaciti for example using the TTwholesale network you wouldn't ever deal with TalkTalk themselves. Like you don't deal with BTwholesale when you buy a BTw powered service.
James be* pro (16.8 / 1.2 sync) - BQM - FTTC cab installed 18-jun-2012 - not yet active - est 44.6 / 6.5