Re: YMMV
"I've been with Plusnet since they were Tiscali"
????
I was with Nildram who were taken over by Pipex who then rolled Nildram's CS arrangements out to the rest of their business. They were then taken over by Tiscali who nixed Nildram's CS. I left them when they were taken over by TalkTalk who traffic-shaped Usenet more or less out of existence and hid behind the crap Tiscali CS at which point I left. I'm not aware that Plusnet ever were Tiscali.