I think most all of us have probably openly prayed for the demise of #14 back stabs on resi grade receptacles and switches, yet it seems every manufacturer is on the band wagon to come out with all this new improved 3M ScotchLok and Wago style crap, for everything from ballast disconnects to device terminals.
Not being one to buck technological improvement, I have used the ones that come in the Halo RC cans before, but had a problem with a loose neutral connection that cost me additional time to track down and fix, so now I just snip those orange things off and use wirenuts. I feel the extra 10-seconds and .06 cents per wirenut are a small price to pay for solid reliability.
I see that P&S and Leviton both have their own quick wire devices, like Wago does, with those plug in harnesses. They sent me some free samples, but I don't think I will ever use them. Not to be overlooked, it seems all the modular homes come with those infamous Tyco stab connector blocks hanging down below the floor joists.
