Ditto on what everyone else said, I think the MKS has one of the nicest LED tail lights out there. They look menacing at night actually!
Only mods I was interested in doing to my own set of MKS taillights was to swap the amber turn signal bulb to a LED bulb though they don't offer one due to the weird bulb Ford went with on the car. Might have to retrofit a LED light bar instead!