The billion dollar Harmony of the Seas is Royal Caribbean Cruises newest ship. It has 16 decks and can nearly 7000 passengers in addition to a crew of over 2000. Travelers were quick to lash out at the cruise line on Twitter. Many alleging that despite taking 3 years to build, the ship wasn't completed in time for their cruise. Pictures were posted of wet paint, missing safety glass and other construction sites throughout the ship. They complained it was like taking a cruise with a bunch of contractors and asked for refunds on their already discounted tickets. Royal Caribbean acknowledged that the early delivery of the ship mean some venues weren't fully open yet, like the onboard Starbucks-- much to the dismay of coffee-seeking cruisers.