Just great :) We are big fan of MAM and his articles. This pacifier is used by our daughter to sleep. The soother neck is wonderfully soft and thin and gives a good gut feeling which is related to the future position of the teeth. The light function makes it a possible to find at night after a long sleep duration the pacifier more quickly, even if the light function does not last forever. Unless one comes from a brightly lit room one recognizes the slight lights well. The open label area is just in the winter of advantage. We have far fewer pimples around the snout.