Re: Oh...
It would be interesting to see the split of VM customer complaints by the infrastructure, VM's cable versus Openreach lines.
I'm on VM cable and <touch wood> it has been stable and reliable for almost two decades (blueyonder when I signed up), with only occasional issues and they are usually fixed in a few hours (couple of days the time to modem died).
Just to add, I put my VM 'router' in to modem mode and have my own OpenWRT router using another DNS, might be a factor as well!