Product review (1 stars): Cheap
Good price, which drew me in, ordered from the company, several times in fact.  Excellent service, 5 stars for service, but after two weeks of use, the wicks stop absorbing water.  I think they become clogged with minerals from the evaporating water and loose effectiveness, but no matter the cause, you will need to change wicks twice a month which makes them pretty expensive in the long run.