Product review (3 stars): Works fine, but...
No complaints about this thing, it does what it is supposed to. Just remember, you really don't have to buy a new one every time it gets clogged with calcium deposits from the water and no longer evaporates water. Just put it in a suitable tray, pour 1 part of household vinegar and one part of hot water over it, flatten with dead weight to fully submerge, wait for the reaction to be over (no gas bubbles anymore), rinse with fresh water, and put it back. I do it with all my humidifier wicks multiple times and it works. Wicks with aluminum support mesh will eventually become unusable because aluminum will degrade (after 4-5 cycles, in my experience), plastic will endure a lot longer.