Assuming there are no issues either side of the master socket you could in theory get speeds in the range of 3950Kbps to 6500Kbps using ADSL2+ mode according to this:-
http://ipsite.org/1s4g
I've not got any LLU providers in my 20CN exchange so can't comment from experience, plenty of users with TT and Sky are probably happy enough whereas others are not.
So far my Plusnet connection has been reliable I don't get fast speeds as the exchange is so far away (61.5dB downstream attenuation) but that has nothing to do with the ISP.
Support from PN staff / Digital Care Team via the PN
Community forum is very good - especially just now with a CS and phone line revamp happening resulting in 20 to 60 minute periods waiting to get your call answered.
Edited by Apprentice (Fri 20-Dec-13 18:44:43)