At first blush this seems like a gimmicky tool, but since I started using it, I can't imagine life without it. It charges up quickly, is very easy to assemble and works beautifully. It delivers a maximum amount of product in a fine mist with a minimal amount of effort. I've been using it to apply my Missha Time Revolution essence and it creates a gorgeous cushiony layer of deep hydration on my skin that I don't experience by merely patting it on with my hands. If you adhere to the seven skin method of applying your essence or toner, this is a great way to get the impact of multiple layers of product without actually going through the time and effort of applying each layer individually. If you intend to use this for more viscous liquids (like a serum), the manufacturer recommends diluting first so as not to clog the nozzle. Although I haven't tried it yet, in future I'm hoping to mix an essence or toner with a few drops of serum to see if I can complete two steps of my evening routine in one shot.