If you want to have perfect skin, and you're over the age of twenty-five, which I certainly am, you need to do microdermabrasion or have it done in a salon. I was having twice monthly treatments in a salon, but that gets to be very expensive and very time consuming. So, since I was so happy with my PMD cleaning system, I decided to invest in a PMD microdermabrasion system I could use at home. There is a slight learning curve with this device, but only very slight. After you use it once or twice, you'll get the hang of it and do just fine. My advice it to keep it moving. Don't let it stay in one place. This device really does exfoliate all the dead, dry skin from your face, even the dead, dry skin you don't think is there. (I use a gentle enzyme peel almost every night, and it does a wonderful job of removing dead, dull skin, so I was surprised, but pleased, that this device removed a lot more I didn't even know was there.) The suction of the device quickly vacuums up that dead skin, leaving your skin fresh and glowing. In addition, the vacuum encourages circulation and the formation of collagen and elastin, and don't we all need that? By removing the layer of dead cells, and make no mistake, after age twenty or so, our skin doesn't shed dead cells like it did when we were a child, your gorgeous, expensive, serums absorb so much more easily, and do their work so much better. It even helps remove superficial lines and wrinkles, and who wants those? I sure don't. (I have tiny pores, and never had blemishes, so I can't speak as to how it works with those, but my guess is, just fine.) I bought the Classic version of this microdermabrasion device because I really didn't think I needed more. One speed is fine with me. This version comes with three discs: very sensitive, sensitive, and moderate. I highly recommend you begin with very sensitive or sensitive until you see how your face reacts. I now use moderate or course discs because I don't have sensitive skin at all, but I did begin with the sensitive to make sure the device wasn't going to be too vigorous for even my skin. After using this device twice a month for several months, I now have a fresh, glowing complexion all the time. I love this device. It's become an indispensable part of my beauty routine. I don't ever want to be without one.