As of Update 11, LOTRO adjusted all crafting facilities to be used as regular and superior across the world, and all non-unique facilities had the word 'Superior' removed from their names. Historically, Superior Workbenches were required for Foresters, Jewellers, Tailors and Woodworkers who were using recipes from Artisan level and above. They also served lower level recipes.
This workbench can be placed in a Small Yard or Furniture Hook to allow you to perform Farmer, Forester, Tailor, Woodworker or Jeweller crafting at your house.