Have you had a good experience with it? Did you see a noticeable difference using it?
It seemed to work pretty well. I didn’t do a controlled experiment or anything. Sometimes I use bone meal and/or blood meal. It seemed to work as well as those. It doesn’t stink as bad as blood meal.
I always include a dose of my own compost - kitchen scraps, paper, leaves, coffee grounds, and garden stuff - like the wheat or corn stalks. I stick it in a compost bin and empty it out in the spring.
The large bits go back in the bin or another compost pile and the rest gets used.