The moorings are not in a harbor, but out in the open, subject to swells and a 5-10 mile fetch. Very uncomfortable in any northeast through south winds.
Would be fine in glass calm or east breeze. Menemsha has some small fresh fish markets, gas station conveniences, cafe and ice cream stands, but no real restaurants. You cannot overnight anchor in the pond unfortunately, which would have been way better than on a very uncomfortable mooring. Bay cops will ticket clammers without a license in the pond.