Given the polish in the quests, combat, and PvP, the crafting system really sticks out as a tacked on system.
Initially I picked salvaging and talismans for crafting skills. Salvaging was especially frustrating. I often got a message saying an item was not salvageable or that I wasn’t skilled enough to salvage an item. But I never found information in an item’s description to indicate if it was salvageable or what the minimum skill level requirement is to salvage it.
So around level 18, I switched to cultivation and alchemy. Not great, but better. Cultivation is especially interesting since I can plant a seed and close the window.