There's a Flavio@Dirac who used to handle tickets and entertain my inquiries (in a small company way). I abused that contact until he stopped responding :)
In any case I've been using it for almost 3 full years and for the most part it alienated me from recordings that lacked headroom. The old stuff sounds great but from the 80s on I'm constantly adjusting the balance between Dirac's digital attenuation and my preamp gain (on a track by track basis) to strike the best balance that maximize dynamics and minimizes clipping. Definitely a job for a computer and not the listener. Eventually I got tired and stuck to all high quality recordings so I could be a spectator and not a DJ. I blame Dirac for forcing me to like Jazz (all that headroom) and abandon my favorite catchy tunes that were stripped of headroom shortly after birth in the processing studio.
This morning I tried the Volume Leveling (R128) function in JRiver.
Not one flicker from Dirac's clip indicator, and I have Dirac's gain maxed.
I played Kanye West, Major Lazer, Infected Mushroom, and still no clipping.
Roon v1.3 is supped to have this R128 function. I'm not leaving JRiver until that feature is ready.