OK, I only got it this evening, and have used it once. I'm using it to grind up "calming" cat treats, to mix into the girls' food. Pill pulverizer did the job quickly, no mess, very little effort or strength needed, ground into fine particles. I like the dent in the bottom, as it enables the pestle part to fit down into the dent, and it holds the pill in place, and contains the ground up bits in one place. Easy to dump out the dust into their food bowls. Easy to clean. I haven't tried it on an actual pill, but I'm sure it will work nicely.Oh, and the cats are sleeping now, not fighting. Because previously they would eat around the calming treats. But with the grinder, the particles were mixed into their food and they have no choice but to consume them.