The service from AAISP is really great, their support staff are proactive and helpful, there is very little downtime and when there is you can have automated alerts. It's also really nice not to have a separate contract with BT for a phone line when I don't use the telephone.
I recently move in to a new house which previously had a virgin line and AAISP handled everything with Openreach to get my line installed, kept me up to date with alerts about the progress of the install and everything went smoothly.
The online admin system has a somewhat cumbersome UI but it also has a wealth of information about your internet connection that isn't normally shared by most ISPs which is really helpful.
Time With Provider: 2 Years
Package Name: Home::1 VDSL