A couple of Pros: I used my FSA card to buy this online. Another Pro: I actually noticed a difference using this product. However, with all things health related, it should really be one product in your whole skin care regimen. Also, it's not an every now and again thing, it really should be getting every day or every other day use. So... Con: I would agree with some users that it is cumbersome to hold it for 3-10 minutes on your face, especially since that's 3-10 minutes PER spot/use/area. Good news is that there's a face mask on the market in case this works, that's always an option.