I've had the Nova system for over 5 mos now. I like it. I back it up with another microdermabrasion system in between. I really like the cleanser and the moisturizer. I'm not completely sold on the "sonic" part; meaning I'm not sure if the sonic part is doing anything or not. I'm ordering more product. For me the product lasts longer than they say it does. I'm going to keep using the NOVA Skin Care System (at least until something "better" comes along).