I’m incredibly satisfied with this brush! As someone who regularly walks our dogs, I often deal with mud, stones, and debris getting stuck in the grooves of my sneakers and other shoes. With just a little effort, this brush has done an excellent job cleaning them out.I purchased two different brushes for comparison, and while both work well, I prefer this one. It’s effective, durable, and makes cleaning much easier. I’m so impressed that I plan to buy a spare to have on hand for when the bristles eventually wear out. Highly recommend this brush for anyone dealing with stubborn dirt on their shoes!