I got some. Works okay on stems, but I haven't tried buffing, just wiping hard. Also worked well on silver military mounts, etc.
Says you can use it on the bowl. Don't, unless it's smooth. Sandblasted or, worse, (carved) rusticated, and it will go into the little crevices and won't come out easily. I had to use a toothpick in each and every little indentation to get it out.