I’m not good at it, but I use it every day. I wasn’t very good at C in college either, but I struggled through it.
I pretty much work out of a PS console and the ISE most of the time. Never had much formal training, but I’ve managed well enough to make a respectable showing that the Scriting Games the last couple of years. I’m an AD/Exchange admin, but I’ve been getting more and more programmers coming to my cube for help with Powershell and regex.