I've been through a few ISPs (NTL - Virgin, Vispa, Origin, ... can't remember all). AAISP have to be the best especially for support and service. The few pounds extra compared to others is well worth it.
Got all I wanted here, FTTP, IPv6 and VoIP with my old landline number ported over. And folk with the time to help me understand. I'm well pleased.
(If you don't know already all landline telephones in the UK are due to be made VoIP in 4 years time. Openreach are taking the current copper telephone cables out of service.)
Time With Provider: 3 Weeks
Package Name: Home::1 + VoIP