We had quite early only MAM pacifiers. We think it's just great that they can not be taken the wrong in the mouth (symmetrical). It was also the beginning also good that the pacifier is no extra grip - because then our baby has not ever pulled the pacifier accidentally.
The light function we find ebenalls top. It is my opinion, not too bright - but it is said that there also sensitive children, yet bright enough to find him in the dark.