Had various accounts (private and commercial) with...

Had various accounts (private and commercial) with iiNet for many, many years and, so long as you avoid the baby kids on the tech help line and always ask to escalate your issue, have never had a major problem with their line speeds, connection times or resolution windows.

This takes into account the idea that sometimes, there is actually a technical problem that is causing an issue and that technical problem cannot be magically resolved with the imaginary Wand of Fixing that the greater public seems to think exists. Out in the real world, things break and cost money to resolve.