I’ve only had it a few days, so take this with a grain of salt, but it is a major upgrade from my Aroma360 Diffuser. My other one is SO loud it sounds like my neighbor is mowing his grass. But that one was quiet at first too, so I am leaving room for the possibility that this motor will get worn out as well. This machine is almost silent, to the point where I’ve had to get up and make sure it’s still on. Easy to assemble. I just turned it on and it started spraying. You can make it complicated with the app on your phone and passwords, or you can just plug it in and let it do its thing. It’s like a little fog machine. I am using My Way oil by Aroma360 then switching to Kindling oil by ScentFluence (the real one that My Way is a “dupe” of- both are incredible! But Aroma360 is kind of a scam.) I saved so much money buying this machine vs other upscale brands, but still think it’s a little overpriced for what it is, a fog machine for air freshener. If it continues to function properly, I’m going to buy one for upstairs too. I have it on a window sill in my living room and it is scents the entire living, dining, and kitchen beautifully on the factory settings. Seriously, check out 1 Hotel Kindling candles and oil if you want your home to smell like a fancy hotel.EDIT 9/29/2023: I switched to Kindling fragrance oil and filled it ALL the way to the top which caused it to make a very loud, bubbling fishtank sound during use. So I removed some oil and it is quiet, but no longer silent like when it was fresh out of the box. Maybe people are just overfilling their bottle? Also possible that some oil formulas work better than others.EDIT 5/3/24: It’s still working perfectly and turns out I love the app.