Product review (4 stars): I really like the silicone gap covers compared to the hard plastic ...
I have not had these long, but so far, I really like the silicone gap covers compared to the hard plastic gap covers. The hard plastic covers moved when bumped or touched (and fell in the gap) but the silicone covers "stick" to the stove & counter so when bumped into or cleaned they do not move. This is great especially since my countertop is higher than the stove and also has a pretty good gap between the counter & stove.  The hard plastic covers also warped from the heat of the burners, I do not know if this will happen with the silicone yet. If needed you could also cut the silicone cover which would be difficult with the hard covers.