I feel like a pretty decent metric for the user-friendliness of a Linux distro would be:
at least one of these tests would fail if any of my most common issues with Linux happened:
@kasdeya The "six month test" is a good one to be honest. It's great if things work out of the box, but if it withstands half a year of software, updates and general crud too that's even better!
@kasdeya Unfortunately it always seems like at least one of these is a compromise for the other. At best we can minimize each of these by having a little bit of them all.