I tried this product for free in exchange for my honest opinion. I have been using this product for about a week now. I'm initial setup I found that it was a decent sized compact unit. The tank size fits a decent amount of water for the size the unit is. Fits perfectly on my night stand without being too overwhelming. The unit lasts almost 2 full days on one of lower settings. It always finishes in some point during second night. Overall we live in a very dry climate and found the unit did a great job for our master bedroom. The only part not a huge fan is that when the water runs out the unit doesn't shut off and the dial on front stays green. Any other unit I've used the light goes red to notify you to refill.