Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not working for me

I was skeptical to buy this machine with the lack of reviews (the same 15 all over the web vs. the hundreds of reviews on other machines/treatment products) and I should have listened to myself. I purchased it on Trophy Skin's website and have used this machine 2-3x a week since mid-December and although you can see the dead skin accumulate in the filter, I haven't noticed the slightest change in my skin's appearance. I still have large pores and minor acne scars that haven't diminished at all, even after increasing the intensity to the highest setting and going over my face 2x a treatment. Although they offer a 30 day money back guarantee, it's not enough time to see a difference and you'll end up losing out. I kept it passed the 30 days in the hopes that I would see results within time, but nope, I'm out of luck.