Not a big fan of Carnival but have had several cruises on them so I am not void of their ships. The Inspiration is a Fantasy Class ship built in the mid 90's so I would stay away from the elevators on any deck, outside on Empress, good choice but choose midship or aft, not forward, interior only if you are a bat, suite, woo hoo, but only a suite on Upper deck, stay away from the suites on Verandah deck, they are smaller, high and as far forward as you can get unless you are on Riviera deck, plus the rear four have somewhat obstructed views because of lifeboats below them.
Inspirations goes to Ensenada, far enough from the border and on the Baja so it is currently fairly safe, (subject to change) on the other hand there is not a lot to do or see in Ensenada, so maybe a trip downtown to Papa's & Beer for some chips and a couple of Corona's. To me the safest place so far on the Baja is Cabo, everything else is subject to change.
Entertainment will be what you make of it, there is always something for everybody, service and food, well your going to hear good and bad no matter how many reviews you read, my last cruise on the Spirit, the food was just plain lousy and the service wasn't far behind, had it not been for our fun loving cabin steward, I would have jumped ship, but on the other hand I have read reviews where service was great and food wonderful you just have to have an open mind, if you can't stand the food in one place go to another, if the buffet food is good and the dining room is lousy, I don't have a problem eating in the buffet. Point is your going to get good and bad reviews, but in the end your not going to know for sure if it fits you till you sit down for that first meal.