I ended up returning my Dunst.
One reason was that the knobs were really wonky: very inconsistent in the resistance. So tight in some places that it made it hard to adjust them at all.
But also, because the functionality was very underwhelming to me. The "dust" part was very subtle, And noise was not something I could not get from Quantum Rainbow. Other aspects related to triggers, I felt were well covered by, for example, Fourses, which I kept.