We were given this humidifier as a gift from our baby registry, but it’s still something I would have definitely bought on my own! Our son was battling a tough bout of eczema at 5 weeks old so we put the humidifier in our room on low to keep some moisture in the air for his skin and it helped rid of his eczema sooner! I also noticed myself waking up less congested and with less of a dry mouth (I’m an open-mouth sleeper). We don’t even fill up the tank and we keep it on a low setting so it doesn’t get too cold for our baby, and it will last for almost 24 hours sometimes! One night I set it on low around 10pm and it didn’t run out of water until the next night around 8 or 9pm. 
I really really enjoy having this humidifier for our baby, but even for my husband and I as well!