Re: Key Leaves fixed the sticky key pads on my saxophone.
I can't speak to this product's effictiveness, but at $25 on Amazon for what is baically a simple rubber strip I'm not going to try it.
A simpler and cheaper solution that I've found is cleaning the pads with a product called "ultra suede", available for $5 - $6 on eBay for a sheet large enough to last a lifetime. You use it like the old folded dollar bill trick to clean your pads, and it works a lot better.
I picked this up from a YouTube video by an Army field band repair tech who has a series of repair videos with loads of great stuff.