I tried this product for free in exchange for my honest opinion. I tried the cool mist humidifier, when my son had a cold. I was excited to try the essential oil tray, which was a nice added bonus. They cool mist helped him sleep through the night and he was less congested when we used the humidifier. I put some Vicks liquid in the essential oil tray which may have helped but I was not able to smell the Vicks for long. I liked that I was able to angle the direction of the mist so I was able to direct it towards him rather then just having it spray upwards, like with previous ones we have used. It also worked all night without having to get up and refill it . Overall I was impressed and definitely would recommend it. I know I will be using this again  whenever the kids get a cold.