I got a sample Fat Chick in my last order; at first I thought it’d be TOO fat, but after actually stringing it up, it’s not nearly as fat as other strings I’ve tried. And I mean that in a good way: it’s substantial, but isn’t going to get extra-snaggy on you.
I couldn’t resist putting a Fat Chick on my Chik… it just seemed like the right thing to do. 
Anyhow, I like it a lot. As with all strings, there are tradeoffs, and I do enjoy a slightly stiffer string. But the luxury and incredible comfort of the Fat Chick means that you have to lose a bit of stiffness.
(wait, was that another opportunity for giggling and jokes? Totally unintentional!)