This is one of those espresso tools I had no idea that I was supposed to need. And since I happen to love trying out new espresso tools, I figured I’d give it a try and probably wind up seeing why I need this. Welp, I tried it, and I’m clueless with this one. It could be my grinder’s fault – I feel like it’s very near retirement and has almost given up – or it could be I had my espresso setting one or two clicks finer than I normally set it…I don’t know. There were too many different variables and all I know is that I wound up with an espresso explosion with mucky grinds e v er y w h e r e (I did manage to catch the portafilter before it hit the ground, amazingly enough, without getting burnt or hurt)(my shirt can testify to said explosion. It has the coffee stains to prove it). No I do not think it was the mister’s fault, though I certainly cannot tell you why it’s “needed”, that is for sure. But I can tell you that it is very well made from seemingly high quality materials (though I do wish the sprayer was metal to go along with the high quality of the rest of it. I will say the plastic is higher quality than your average sprayer, for sure!), looks fantastic and quite scientific and like you know exactly why it’s there and what it’s for…even if you don’t. It also gives off the finest spray mist ever there was. With that being said, I am sure you’ll understand when I say, I think I recommend this? (For those of you who absolutely know what you’re doing and the whys along with the science behind it, then this is THE sprayer you probably want. For the rest of the me’s out there, mmmm…maybe no, or fill it, put it by your espresso bar and when someone asks, tell them it’s a mister with super complicated science behind it, smile, and make your espresso as you usually do)(that will be the route I’m going).