What does AAISP do better to be so expensive compared to the competition?
1. It's more expensive, but not that expensive considering I use the internet for 12+ hours per day, and I earn an IT professional's salary. At a £15/month premium over other ISPs, it's a far cheaper luxury than a fancy car, a foreign holiday, or a pet.
2. ISPs I've used in the past have had truly shitty support - no matter how often you have problems, they'll just tell you to restart your router and close your ticket. AAISP claims to have support that can actually investigate and solve problems. I wouldn't know, as I've never had to contact their support.
3. I respect their pro-privacy/anti-censorship stance.
4. Many ISPs that are "unlimited" do have limits, they just won't tell you what they are or if you're close to them. They'll be in small print like a "fair use policy". Having spent a month throttled by Zen (admittedly years ago) I'll take an explicit limit over a mystery one. And AAISP's limit is more than enough for my purposes.
Perhaps I should look into Zen. They are the other one I hear good things about. AAISP does have a 300GB monthly limit (extensible for a fee) but I've never exhausted it, even with two people WFH and nightly TV streaming.
AAISP have strong principles of privacy and not interfering in connections. (No NXDOMAIN web page injection, for example.) Also, exceptionally advanced line monitoring tooling and configuration - they let you see telecoms-engineer metrics and parameters about your line, for what that's worth.
The price I quoted includes line rental btw.