When I first tried Spiff, I wasn't sure how it worked or what it could be used for. After checking out some YT videos and demoing it, it's become so useful to me that it's a staple in my toolbox. I use it mainly to suppress transient attacks. I like that it's multiband. Other transient designers I've auditioned go too far in muting transients and actually dull the sound. Spiff is pinpoint accurate, zeroing on those pesky blips without affecting the surrounding audio. It's especially helpful when I'm using arpeggiators that has a glitch effect. Some of those glitches can cause audible unwanted clicks, that's when Spiff comes to the rescue. I also use it to smooth out plucks in my ambient tracks. It's a very valuable and transparent tool and definitely a keeper.