I love my 85mm f/1.4D lens.
I got it a few months ago from a guy in MIR.
It has a quality of melting away the background that is unmatched with a 70-200 lens.
However I don't use it at 1.4. Rather, I stop it down to f2, or f2.5 for added sharpness and DOF.
Even so, sometimes the mouth is out of focus while the eyes are in focus.