This will be quick since this is a product I’ve never bought nor have given much thought. The basic box game comes with pawns to get people started and I’m figuring this product helps continue. I personally prefer minis but in defense of Pawns, you’re guaranteed at least one of everything from Bestiary. Not a small feat given how some creatures in the game would be difficult to make into a miniature.
I would recommend this for younger players who don’t have the income to waste on minis like I can (and shouldn’t). It’s a cheaper solution until you find out if they’re going to stick with the hobby.