[stephengillie]

The real "gotcha" for Powershell, for me, is the huge differences between versions. As the author mentions, v3 is much better than v1. The original version is pretty bad. A lot of parsing cmdlets don't work right. And a lot of the really useful ones aren't included, which also blocks some of the cool cmdlets you can download and install.

Having to port a script from Powershell v5 to Powershell v2 is dumb, but sadly necessary. Usually I'll write a script on the oldest server in the farm to ensure interoperability. But often the workarounds for v2 break v5's implementation of select-string or other parsing tools.

And this doesn't get into remote execution or remote script enablement, which are both separate. Powershell fragmentation is a serious problem that complicates Windows adminstration and use of this powerful tool.