I was able to use this for 3-4 months. I didn't see the biggest change but I am also not very consistent at keeping my skincare routine up. I didn't drop it off anything but one day I pushed the power button and it just had all three lights on and never worked again. I didn't actually request a replacement at the time because it was after a decent amount of usage over the 4 or so months and because I had a bit of bad luck with products last year so I felt like the vp folks would start thinking I was shady. I think my experience was a fluke, and I do think despite this issue (which was probably just a individual device thing) that I would definitely recommend this especially if regular exfoliating is not enough for you, or just for an extra bit of pizazz in your exfoliating routine. Obviously this goes best with all the other VP products and I definitely trust this brand and own a ton of their products that are (unfortunately for them) still working very well and I have never needed to replace them except in the case of younger sister theft. ;)