I am a man and have no experience with Essential Oils and had no idea how this would work, but I was shopping for Air Fresheners, and this product was on the page so I took a look at it, and figured, 'eh, why not give it a shot for $20'. It's awesome. I put it in my bathroom, and didn't think it was working, but then a friend came over and instantly commented on how it smelled like nice peppermint, to which I said, 'oh that's my bathroom'. Since then I can definitely smell it. It should be noted that this is my bedroom bathroom, not the living room bathroom. So with this product and some essential oil, which I had never purchased before, I'm basically freshening my bathroom, bedroom, and living room.I don't know how you're supposed to pick out which oils to use, I picked out a peppermint. I can't vouch for the oils curing cancer, world hunger, or any of the other diseases of the world, but my bathroom smells lovely when I'm sitting on the can reading reddit on my phone.