Excellent alternative to can't-get-a-grip-in-time push-pulls. (Push-pushes are much better, but can be a bit fragile and is it up or down? If you drink lots of cheap lager, there's only one position anyway).
The triple shots are great for settings that you use for a whole song, Philly Q is right that they are a bit fiddly on the fly especially if you don't have any nails and no, I'm not talking about your cr@ppy guitars, mate.