I've had my ADI-2 Pro for 4 years now, and it's truly the perfect tool for what I do (Dialogue and Music Editor for film and TV)
Having all of that Hi-Gain allows me to easily hear things recorded at -50dBFS, the setups allow me to easily go between different sets of headphones and EQ them separately (Balanced headphones included), Working at high sample rates for design work, extreme pitch and time shifting... I even recieved a custom cable for my HD600s that was wired backwards, and I just made a setup preset with the width set to -1.00.

This unit is the single most important piece of hardware I have. Thank you so much team RME for such a superbly designed and feature packed unit. I hope I never had to be without one again.

Dustin