First off, I would never recommend a 10 day cruise to a first time cruiser. I would suggest 7 day cruise or less to see if cruising is for you. As for the water slide, if the crew felt it was unsafe to operate, yes they will shut it down and there is also the possibility that a needed part couldn't be obtained until they returned to the home port (New York). Sorry you thought it was "terrible" that you couldn't use the pool for 3 days but NCL has no control of the weather. If you feel that the MINOR inconveniences you experienced ruined your 10 day cruise, please see the first sentence of this reply.