This is how awesome systemd is:

I physically moved a Linux server from one place to another.

The server had two separate dual-port NICs with one port on each NIC bonded (teamed, in Windows’ terms). It had worked fine for almost a year.

Then I moved the server and re-connected the NICs — using a photograph, so I know it was correct (verified it three times).

After the move, systemd had moved/mis-identified one of the ports in the bond, so even though the cables were plugged in correctly (I had a photo — easy to verify), one half of the bond was not functional. (In other words, a port that systemd had called “Bill” was now called “Jennifer.” Since the bond software identifies ports by name, it was thus broken.)

So something that worked for 10 years in Linux without a problem is now completely unpredictably non-functional due to systemd.

That’s quality, right there.