If we ever have to go to war with this thing it will be a nightmare. A ship design so expensive the program was canceled at 3 ships instead of 34 and the Navy is actually considering scrapping the the third hill before it's completed. 3.4B dollars per hull on top of the 9B spent on R&D is absurd. The design is a tumblehome hull which has some notoriously bad seakeeping quirks. Also while undermanning is a cost saving measure, damage control is one thing that is tough to automate. When it comes to a casualty, the only way to fight fires or shore up breaches in the hull is with manpower, an area where the Zumwalts are critically short.
