The 85 1.8 is one of my favorite lenses for photographing people, but I haven't used it a lot this year. I became interested in lenses that create an obvious separation between the subject (usually a person) and the background. Most 50mm F/1.4 lenses will do this, as will the 24-70 F/2.8 Mark 2.
I've been using my old 85 again and find that under certain conditions, I can get a fair amount of that separation effect. It seems to be best around F/2.0, not wide open. I'm thinking the effect results from a combination of very high sharpness in the focal plane along with good bokeh (whatever that means) and a background that lends itself to a mildly abstract appearance when heavily, but not too heavily, blurred. My impression is that this separation effect really exists because of the way our visual system processes flat images (ie: photos).
Here is an uncropped example shot with the 85 1.8 a couple of days ago. Gentle adjustments in LightRoom. The camera was a 5D3 whose precise focus is part of the equation, I think.
I left the EXIF in if you want to check it.