I stay between Duncan and Glyn.
I haven't run any diagnostics as of yet, as my my line was only activated on the 1st of March. So I haven't had a line for all that long to see if it was misbehaving. Speedwise my line is fine - pretty much what I'd expect from a 384 line. I do sometimes get random sync issues which force me to have to reboot my router - not sure if that is line or ISP related.