Searching a lot of deshedding tools for my Shitzu and came accross this one Amazon.com: FurMaster® - 60% OFF - The Perfect Dog or Cat Grooming Tool, Deshedding Tool. For a Smart Looking Pet. No Need For Shears or Pet Grooming Clippers! Let The FurMaster® Deshedder Brush Work For You.: Pet Supplies Has anyone of you used it before? Only honest reviews please!!!