About the same as every other Expansion Permit dropper. It means very small chance to get those. I have made all 4 - and I don't regret them, but don't expect too many permits very often.
But if you compare it to the Armored Bunny - then Kitten Knight is MUCH MUCH better.
I don't think there is MRC animal with worse drops (at this price) as Bunny is. 35 tokens- for carrot, sugar, aple pie dropper - with chance of golden eggs....