I don’t use this every day, but it is really good to have. It is great for removing old lube, and you can really feel the difference between a clean and (for a lack of a better word) dirty trombone. It can be a bit tricky to get around the bend, and i always dread that the cloth will get stuck or detach inside the trombone, but it never has. I have used them a fair amount and always recommend them.