Did anyone found it usable? I struggled to automate some recursive copy/filter of files. I don't remember that task taking that long to automate on Linux.
I will admit I was paid to drive hyperv from ruby remotely. What happened is that WinRM wasn't usable and that PowerShell was the lowest barrier mechanism to drive the functionality. It was nasty but thanks to WMI and some 3rd party PowerShell REPL that job was over. I wouldn't willingly give up Ruby much less Perl or Bash for PS. It seems like another "thumb their nose" CLR, C#, closed-source NIH proprietary lock-in tactic.
Years ago I wrote tons of jscript to silently deploy lots of software remotely, and it wasn't as slow to become "productive" at as PS.