we use em at work and they are very nice we all like em they are alot quicker then normal devices. they have the back stabs on the devices for the wires and you save time because u dont have to screw the device to the box then screw the cover to device they snap in the box and the cover snaps to the device the switches are all plastic no ground screws on the switches. the receptacles have ground screws those are the only time we use a screw driver on cheetah devices. i think the devices and boxes are a lil more expensive but worth it in labor cost. they hold real well no pulling out by yanking on a cord. actually they are kinda a pain to take out because there is a screw that holds the lil black sqare tabs to the device that pop in the box.the covers stay on there is a lil indent to pop them off with a flat blade screw driver otherwise they wont pop off.
