Works great, now!
Was pretty buggy and slow in the past, but seems to work smooth and fast now that AudioControl has released software and firmware updates over the past year. If you tried it before and were disappointed, make sure your DM-608/DM-810 or D series amplifier has been plugged into a computer and updated to the latest firmware from the AudioControl website, then try it again. It’s working reliably for me now and has been for the last few months.