Product review (2 stars): Stinky but effective
The low price was a decisive factor for me.  I ordered six of these, thinking that would definitely get me through the winter.  They look and work as advertised, although I can't really compare them to the factory filter since it has been several years since ours was used up and I don't recall the water consumption rate from back then.  This filter resulted in using the whole tank in about 12 hours when running the fan on high in a very dry room, which seem reasonable.

The problem is the God-awful smell in the first few days.  Just opening the box, with dry filters, is bracing.  Once you get it wet and turn on the fan, stand by for stank.  Really terrible smell for the first 24 hours, then bad for the next 24, then the smell seemed to fade.

There is no way this is worth it in exchange for saving a few bucks per filter.  Go with a more expensive version...you get what you pay for in this case.