I've been really enjoying this product so far! My bathroom doesn't have a fan so this really helps to make sure that I don't walk out into puddles of water after a hot shower. I wasn't sure it was quite working at first, since I expected more water to collect in the reservoir but after paying attention a bit more, I have definitely noticed a difference. It doesn't stop my mirror from fogging up completely, but it definitely clears it up a lot faster and I really appreciate how small it is (as I have a small bathroom), so it's able to fit fairly unobtrusively.