Water lasts a long time

I have several diffusers/humidifiers of various types. This is the least expensive-- it isn't my favorite, but its quite good especially for the price. The best feature is the 500ml tank which I only have to refill about once a week (using it for 2 hours a night). It puts out a lot of vapor as you can see it coming out in a steady stream that you can position by rotating the cap. Its also not too loud though I can hear the water splashing around inside more than my others. The 3 button controls are very easy too (I memorized them to use without looking) and I like that it remembers the light settings. As for negatives... I wish it had more balance/support on the bottom. It has a 3 "leg" tripod configuration which isn't as steady as 4. When I remove the cover it always spills a little water that has condensed on my wood nightstand... And these may seem minor, but the little blue LED indicator lights are really bright. At night they actually light up my entire bedroom so I had to cover them up with little pieces of tape which renders them useless. Also I wish the cover was a frosted semi-transparent plastic like it looks in the photos. Instead its just plain white which works fine at night but it doesn't look as nice in the daytime.

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