I find great that it is a paid asset, specially seeing such a huge library of icons. However why a subscription model? For this price I guess only mid large studios can afford them, and they may compare it to other asset libraries like the ones from adobe, etc.

Also it is not clear to me what is the license, if I create a product for a customer and I stop the subscription I guess this product can still use the icons I put them there.

Anyway, congratulations for the product, I bookmark it.