The whole point of the handgun FCD is to insure every round will chamber, every time. If high accuracy is more important than reliability then there may be a reasonable question. But ... I like 'em and any accuracy I may lose is quite small.
So, is it 'worth' it? Well, it's a tool, not magic. Those of us who need it and use it correctly say yes. Others who don't need it stoutly tell those who do that we are wrong. No matter, the nay sayers are the ones who are clearly wrong and it gets amusing to read their stories about how they don't need it so no one needs it.
