Product review (5 stars): So much better than cleaning the oven, so worth it
I may never have to clean the oven again. So worth it. Measure first, or get a too-big one you can cut down.

I'm not too messy about the oven, but stuff does drip. Now, when it drips, it drips onto this stuff. Every so often I take this thing out and brush all the drips off into the compost bin, and put it back. Millions of times easier than cleaning the oven with chemicals and scrubbing. It will pay for itself during the next major cooking binge.  If you're a renter, get one when you move in, take it out when you go, get more of your security deposit back.