Haven't used it yet, but when it arrived, there was a short, dark, thick, course hair stuck under the sticker. I included a picture of my very much NOT short, dark, course hair. Thankfully it was on the outside(and I was already going to be sanitizing before use regardless), but considering this product is something where sanitation is incredibly important(regardless of if you sanitize again after opening), this was very disappointing and honestly kind of off-putting in general. I don't know about anyone else, but I don't enjoy finding stranger's hair on my things, especially when it should not be there.I'm probably going to bump it to 4 stars after I use it if it works properly, but for now, it's getting a temporary 3 star.