this review title is: finally something that works and the content is: i love this product i have embarrassingly dry and cracked heels in the summer i would have to spend time every week filing with a course medium and fine file to get my heels to a place where i was not embarrassed to wear flip flops even then it was not how i really wanted my heels after one of the files i used was discontinued i decided to look for something else i decided that i wanted something with a motor that would really get the job done most of the products i found had mediocre to bad reviews until i found this one i decided to give it a try now that i have it i do not think i will even use a foot file again it is very easy to use and works to file the skin away with ease i love the adjustable speed i keep it about a third of the way up the first time i used it with the course disc i had the speed set higher and my skin became very warm and felt like it was burning to i turned it down to a slower speed the fine disc i can use at a higher speed i can file my feel in a few minutes and they look and feel great i have used it times so far and both of the discs seem like new so i suspect that i will not need to buy refills for a while the only suggestion i have it to start at a slow speed and get used to it before using higher speeds to see what you find comfortable and effective the first couple time.there are other information for this review, one is this reviewer did purchase it and the other is 3 people think this review is helpful.