Before buying I did a ton of research on the best humidifier for people with migraine & or headaches. I decided to go with this one. I really like it, it’s very easy to work and is quite for even the lightest of sleepers. I always wake up congested and I can finally breathe better in the mornings now, my headaches have gone down tremendously. The issue I have is it doesn’t work on the higher setting. Only the first low setting, so unfortunately I’m not getting the full experience. There are days I’ve still woken up congested. Shipping took a while even though I paid for expedited, I really don’t want to return it and have to wait 2 + weeks for a new one. Also, I really don’t want to be without one now that it’s helped me with my congestion. I will note the company refunded my money for shipping which was nice. I would consider buying again, just worry I’ll end up with one that doesn’t work properly again. :(