Product review (3 stars): Cheaper alternative, cheaper quality
It's just ok.  I have previously used filters for a similar price from other online sites that have slightly better quality than these filters.  The biggest difference is that these filters do not have that little lining of aluminum down the middle inside that the better quality filters have. Because of that, once they become saturated with water, they do not stand up quite as well. They lean and kind of just "flop" over. They are not as rigid and sturdy as the better quality filters.  They do wick the water fine, I just have to move it back to its proper place every couple days because it wilts and slides down leaving the air vent area half uncovered which lets the non-filtered air go directly into the humidifier and out the other side.