Following as I stumbled on the same.
- If they don't waive any of the material costs,
- they don't waive any of the feats (potions would require you to be expert in crafting to add insult to injury),
- they don't waive the need for a formula,
- they offer LESS days discount than the Envoy's Alliance Crafter's Workshop boon,
- AND, in case of Naturalist, you have to re-buy the boon for every single batch you craft (or is it every formula? it's unclear) - unlike Crafter's Workshop, which you pay once and lasts in perpetuity,
they really make very little sense to me.
+1 for a clarification
