Sonarworks SoundID Reference Headphones

I'm mostly mixing with by trusty DT990 pro and I wanted a calibration software to be able to confirm that my mixes sound right. The SoundID Reference Headphones was the way to go.

The Software itself is very intuitive with excellent graphics and it contains a large number of headphone models including my DT990. The download/Installation was also very easy with no quirks.
The sound quality of the calibrated profile is completely flat hence you can take critical decision about your mix.
The software also contains emulation of different environments (such as car, large speakers, airpods) which is very helpful.

However the only thing I didn't like, is that in calibration bypass mode where you were suppose to listen you headphones without the software there is a slight difference especially in top end and it sounds slightly artificial. It is very close but not 100% if you listen your mixes initially without the software.
But again the way I'm using it, I tend to switch on/off the plugin in the Mastering chain when I want a flat representation of my mix and not the on/of calibration button.

Overall is an excellent software and I highly recommend it.