We have used soft paws for Molly and yes they do work. I had them put on professionally (although you can do it yourself), they last 4-6 weeks before needing to be replaced.
She didn't seem to mind them either, she is very easygoing.
I didnt take the scratching post away and the nails stayed on about four weeks. I only put the nail caps on AsherDash, the other cats don't scratch furniture.
I know this isn't my thread but I thought I'd try to ask instead of bogging down the forums with another thread. Do the soft paws prevent accidental scratching on furniture? And if they are chewed off and consumed are they dangerous to the cat?
When I put the caps on my cat, whenever he went to use the scratch post he didn't do it for very long because I think that the rubber was "pulling" on his nails and it was uncomfortable. He would shake his paws out after trying for a few seconds. They fell off one at a time as his claws grew out, took about a month for them all to be gone. To answer the questions, YES they prevent front-claw scratching on furniture because of the blunt rubber tips. But if your cat leaps off of the leather couch, his back claws will likely leave scratch marks. The package doesn't have any warnings about accidental consumption, but I am guessing as a reasonable observer that yes, swallowing a small rubber object would be harmful to the cat. However, when the caps started to fall off I only recovered 9--so who knows