As a Nanny and a Newborn Care Specialist, I have been exposed to dozens of different sound machines. Each has its pros and cons, but this one has no negatives, in my opinion.My favorite feature is the no-looping! If you have had to listen to a sound machine with a looped noise for any length of time, you will begin to hear what sounds like alien chanting, or repetitive phrases that sound rather creepy coming through a baby monitor.My second favorite feature is that it plugs directly into the outlet-- NO CORDS dangling, easily portable in a diaper bag for travel or visiting Grandma's, simply moveable from one room to another.Check this out-- 70 sound variations!! As a career NCS, I've always used white noise. But did you know there are variations of white noise? And that there is pink noise, brown noise?The night light can be any variety of colors, but I stick with red. Red light promotes melatonin production. When one is sleep training infants, red is one's choice of color.Now, about the app... No need to sneak through a squeaky door to control the sound machine's power, volume, light, or choice of sound. Simply pull out your mobile and make the adjustments without disturbing baby! Trust me, when you finally get baby to sleep, tiptoe out of the room, slowly shut that squeaky door, and realize you forgot to turn on the sound machine, you will breathe a great sigh of relief as you remember you do not have to sneak back into the room to turn it on.After years of becoming familiar with several white noise machines, the LectroFan Kinder is the one we chose for our home, for our grandchildren, and I confess, for myself. When I work overnights, I need to sleep during the day with my two yr old grandson playing outside my bedroom door (since the master is off of the family room). The Lectro Fan Kinder is loud enough to drown out even that!