Ear, ear… 
The problem for me is that I’m impatient so when aural fatigue sets in I’m too stubborn to step away for a while. A graphical analyzer allows me to continue working on the mix. I don’t use it as much as you’d think, though, so I don’t have an over reliance on it.
Hey, I use hat one as well!
I’ve also got second one, it’s a mirror image of the first!
They work great together!
That ear could use a wash!