For reference, I'm a 53 y/o health-care exec who had never cruised before, and wanted a medium length cruise for starters. The 5-day Tampa itinerary was perfect for us, and the sole reason we chose the Carnival Inspiration.
The niceties. Food was good, not great, desserts {with the exception of the chocolate melting cake) were all pre-processed hospital-ish cafeteria fare and quite disappointing, but the service is outstanding.
Now for the things I wish I'd known: 1) Carnival has absolutely no contingency plans for bad weather. The ship's arrival was delayed ~6 hours, and 2,000 people were sent to "find something to do" until the ship arrived. A generous $15 credit {sarcasm} was added to each person's bill to cover the $50 spent on two meals (if you could find an open restaurant) and entertainment during the 6+ hours in Tampa. Thankfully, the weather cooperated.
U26 - Nice cabin, but too close to the lounge. The bass guitar and drum could be heard quite easily.