Product review (4 stars): They work pretty well
It was either these or blue masking tape to cover the gaps between my stove and countertops.  Masking tape is much easier to clean.  But these look better!  Only a couple of minor issues make these less than perfect:  one had a small 1/8" tear on one side about an inch from the end when it arrived, but it's not worth the bother to return/replace it.  And they are difficult to keep clean.  Because silicone is by nature somewhat "grabby", they show streaks, spots, and dust very easily.