The Leviton 279-S00 (Home Depot special at $9) is not the best made outlet (Even though now it is rated industrial duty) it does not compare to the 2 Tesla recommended outlets (IMO)
Just look at the contact blades of the Cooper 5754N vs. the Leviton 279-S00, also the the terminals on the Leviton do not use the clamp style for the hot legs, its just a large screw that when tightening can damage the copper wire strands because you will be applying a twisting force as the screw end bites into the wire, both brands tighten terminals to 25 in-lb. so if you really want the BEST 14-50 Receptacle then go with the Hubbell HBL9540A as they use 3/16" Allen screws for 75 in-lb. rating and have large copper V shaped lug boxes