I've been shooting with the 85 F/1.2 L for a few years and it is hands down my best lens. It blows the 50 1.4 out of the water, mostly because the 50 1.4 has the softness issue that you mentioned in the related series. Examples of the 85 1.2 can be found on at http://www.stevenerat.com/blog/
I absolutely love this lens. As long as you can control your body sway and breathing while shooting wide open, then you can actually use it at F1.2 to 1.4, but beware at 6 feet the DOF is probably only about 2 inches at most. If you're shooting on the fly then you should expect to have to overshoot because many images will be lost to slightly out focus, but worth it when you see the results where focus is nailed.
I would mention that it has substantial chromatic aberration (magenta/cyan glow) around any specular highlights, but Lightroom does a very good job minimizing that. Also this is a portrait lens suitable for more controlled photo sessions. The autofocus moves at a glacial speed, so it would not be suitable for weddings or events (Ryan Brenizer recommends the Sigma 85 f/1.4 because of its faster focus speed).
So aside from these couple of issues to work around, it still is my favorite lens.