5.1 KH 80 with KH750 sub tuned in no more than 20 minutes.
Had Sonarworks before but this feels a lot better to my ears.
Be mindful if you are using complex routing or an audio interface that does not have all the physical outs in order (in my case Audient iD44 with ADAT expansion) cause you may have to figure out a way to send the outputs in the correct order so the software sees them correctly.
For example the Audient id44 has 4 physical outputs and another 4 that goes to 2 separate headphones outputs, with that order you will not be able to calibrate 6 speakers as the software sees the outputs as groups of 6 like 1 - 6 or 3 - 8 ect.
Though that might be a problem at the time, maybe it will get fixed in the future.
Other than that, stored dsp calibration is amazing and it works magnificently with the neumann speakers.
Not a day goes by with seconds thoughts :)