I had a Motoreasy policy years ago on a Discovery 4 basically to give me some cover in case the crank snapped (a not uncommon fault 😳), luckily never needed to use it.
Hard sell by the advisor, but reasonably priced. Had to get a Halfords vehicle check which it sailed through.
Only advice I can give is do not accept a betterment clause, gives the warranty provider loads of wiggle room. Remember, it’s just an insurance policy so ensure it’s clear what you are getting.