My wife and I have been on 5 cruises, this being our 3rd Carnival cruise. We chose the Glory because we were looking for a southern Caribbean itinerary and needed to cruise in September.
We flew into Orlando the day before our cruise and rented a car (Thrifty) to get us to Port Canaveral(PC). It was less expensive than any ground transportation transfers and it gave us the flexibility once at PC to eat dinner, go the the grocery store, etc. We had made reservations at La Quinta and checked in...after seeing two rooms (both rooms smelled like mold) we checked out and stayed at the Marriott. It was a good thing we had a car!
The morning of our cruise, we drove over to Thrifty and returned our car. They quickly bussed us over to Carnival's terminal. We arrive around 11:00am. Embarkation took around 20 minutes...it went very smoothly. I recommend showing up early as we did!