Bests & Worsts Reviews from Amazon

This nail grinder is awesome! I have a cordless Dremel, and while it can grind the nails down more quickly, it's so much louder than this grinder that my dogs are bothered by the noise and do not tolerate it so well. I have two Akitas and a Dogo Argentino and this nail grinder works well on all of them. It is slower though so it's best used for regular maintenance rather than for dogs with really long nails. Don't get me wrong - it does grind down the dog's nails effectively, but it's not as fast as clippers (also not as error prone). The charge holds really well. I was able to grind down the nails on the back paws of my Akita, which hadn't been trimmed in several months, shape and smooth the nails on her front paws, which had been clipped just a few days prior, shape and smooth most of the nails on my Dogo Argentino, grind down one nail on my Dogo Argentino which hadn't been trimmed for months because I missed it when I did the other ones, and the charge was still going strong after 15-20 minutes. I think it would take around 10 minutes to do one large dog using this grinder if you do nails every week or two and the dog isn't being uncooperative. It works a bit faster if you hold the nail you're grinding and put slight pressure on it using the grinder.