Product review (5 stars): A big improvement
I've always known about gap covers but these are the first I've ever bought.  I'm wondering why I waited so long.  I've placed one on the side of the stove I use all the time, and am delighted to have that 1/2" gap completely closed.

I have a white stove and oak-grain counter, so I got the clear covers and am completely pleased with the appearance.  I did some messy cooking yesterday and was so happy to simply wipe the drips off the cover and know that nothing had fallen down the gap or dribbled down the side of the stove.  The cover is a couple of inches longer than I need but the excess is flexible and not doing any harm and will be easy to trim should I decide to do so.

I still have to clean the floor below, but with this nice gap cover in place for the future I'm hoping it will be one nasty little job I can kiss goodbye.