My first one I ordered and the seesaw arrived already broken. The replacement broke during installation with very little hassle. I was able to put it back in place, but it falls off when I try to use it properly and turn off the switch next to it. In my opinion, they're better for demonstrating and sharing code, but they won't work really well. . I plan on just turning the switches off manually instead of relying on that flimsy seesaw. If you want something really reliable I would choose another option. There seem to be several other 100 amp panels out there like mine, but they are all currently twice the price.