Powershell users don't age gracefully, that's for sure. You'll learn some arcane long-winded way of doing something in v3 and it will be relaced with something far better. Unfortunately, you'll still have to know the old way.

As for longwinded, I hate using ACL in Powershell. Let's say you have to reestablish FullControl on a bunch of files as an Administrator and you don't have Write access. It's so convoluted and it can even fail silently. So much easier to just use icacls in a single line.