They work, but they aren't fantastic.
I gave this product four stars because they can clean, but as I scrub with them they tend to fall apart.  I run through a large amount of them just for cleaning my glass top stove, and if something is particularly burned on these just tear apart trying to get it off.  I cut the flattened ends off of them until there is nothing left of the pad to try and get more use out of them, but they just don't stand up that well for the price that a person has to pay for them.
Rating: 4 stars