I've had these for a couple of weeks now and have used them quite a few times. They are great; I've managed to get my glass oven door to be see through again! The door was, rather shamefully, covered in brown burned on grease marks. It was dreadful. It just took Spontex Soap Pads, a little warm water and some elbow grease to get the door clean. I've also tackled some baking trays and the burn marks on my kettle. Also, they don't smell too bad and they didn't leave scratch marks; I am very impressed.
Fab little bundles of clean!