These are an interesting product.  The built in dirt storage bin is pretty unique for a single use mop pad.  While it is very effective at cleaning and it is nice not to have to ever empty a dirt storage bin, it feels very wasteful just throwing it away after a single cleaning.  I try to avoid single-use plastic when I can.  In addition to being wasteful, the built in dust bin makes the pad pretty thick which in turn makes the refill pad box pretty huge.  It is a pretty large box for only 10 refill pads, which makes storing it under the sink hard to do if you don't have much spare room under there.  While these pads work well, it would be nice if they were reusable or at least didn't contain the single use plastic.