They work just as good as the pads that came with my machine. The odd thing is, these pads seem to hold up better than the original pads. They look a little thinner but it does not change the way they work. Do not pull them off by the wire and try not to put your finger on the gel. I found if I get them stuck to my finger some gel will come off the pad. I've used one set at least 5 times now and they still stick well. I do take a drop or so of water on my finger and wipe them before I put them back on the plastic.