I myself always on the lookout for a new style/color. I'd like to suggest to increase the timer in hue room to more than 15 sec as i often need to dye more than one item and want to see want they look like together.
Ive made the suggestion before but don't recall where but It would be nice to have a portable temp uni dye tub maybe as something you have to buy that provides the same features as in the uni dye room but portable so you dont have to gate/recall back and forth just to test colors ...