I'm sure it works well, but I don't think I could bring myself to clean bones indoors (well, at least the last ones I had, they smelled awful). There are two methods I am familliar with that let nature do the work. First, take a big flower pot (like the kind you put trees in, or anything else that will completely cover the bones. Make sure it's the kind that has the little holes in the bottom. If it's a really heavy one, then just turn it upside down and put the bones underneath it. The ants and things will strip them clean in a couple of days. If you don't have a flower pot that big (and who would?) you can bury the bones in a compost heap. If you have a good compost heap, the bones will be perfectly clean in a couple of days (even if you left the meat on) and it'll work in the winter, too.
- Chris