Sonarworks is one of the few tools I would not mix without. Even though I have pretty superb room and monitoring, once you learn to listen "Flat Flat", there is just that kind of trust you gain that you are not willing to sacrifice. Even thou I have encountered few hiccups sometimes (as you get with software) The support has been great and present and reliably fast. And what I have understood the near-future updates will be making everything even more right on the money! I highly recommend both headphone and speaker calibration with SoundReference ID. 6/5 !