Prompt and effective support. Off peak times are 6pm til 9am plus weekends with generous allowance. Uploads are unlimited. Excellent ISP, worth the extra money for quality of support.
Peerless tenacity when dealing with BT Openreach. Their continuous line quality monitoring is invaluable and unique. Every significant event in the life of you line and all fault work logs are openly documented.
not sure what product
Recently changed to a convoluted, unit based, charging system. Never have a clue how many GB's I have left. Shame because on all other fronts they are very good.
good personal service
20CN Premium (no LLU at my location). Can't fault support, have accessed by email and irc chat