Never been on any cruise. Worst case was a two hour ferry ride.
I was hooked after the 1st cruise. My then fiance, later to be wife, had already gone on one cruise, and she talked me into going on my first cruise. Before that I had this picture in my mind of a congested with people ship rocking and bobbing in ocean, and had never imagined the unlimited wonderful cuisine. The live Vegas style shows every evening were another pleasant surprise. All this without having to drive and park, no tickets to buy, and no restaurant bill no matter what you order. And they made our beds twice every day with mint chocolates on the pillows LOL.