Our cats love it. They really do. But our one cat has bitten off 4 balls of the caterpillar and swallowed them. Fortunately, 1 ball has been regurgitated in the meantime. Now I know that they should not bite on these preys, but that is of course easier said than done, because once they have a prey, they do not let go. And because these preys are so small, you can't take them away again.
