Ive seen two locations with a Superior Worktable, ones in the Hobbiton-Bywater farming area, and another is in Esteldin.
What Id like to know is whether the Superior WorkROOM is something different than just the bench? The quest text read like it was something special in Esteldin, and the reward specifically says "Superior Workroom Access" but I looked all over Esteldin and only found the Superior Workbench. Did I miss the room or does it not exist?