Dont like the look of them, make the wheels look cheap.
I would assume if you were to hit a kerb with these fitted you would replace it as it would look just as bad as a scratched alloy.
Personally if you dont want kerbed alloys just drive more carefully.
Both our cars have very slight kerb marks on one wheel that were both done by the previous owners.
At some point when they start to look a bit tatty with paint lifting they will get refurbed.