We took back to back cruises for a total cruise of 28 nights on the Infinity and remained in the same cabin for the entire trip. The first cruise was Ft. Lauderdale through the Panama Canal to San Diego. The second trip was round trip Ft. Lauderdale to Hawaii.
My parents are in their 80s and cannot say enough good things about how they were treated overall. Because of their age we took trip insurance through Celebrity, because Medicare covers nothing outside of the United States. Because we are all retired and enjoy cruising the "pod" problem of the Infinity did not affect us, but it did cause quite a bit of inconvenience for others.
Since we are from Wisconsin making our own air arrangements we flew down to Ft. Lauderdale on Midwest Express (only way to fly) a day early. In the morning we boarded the Ramada shuttle at not cost to the dock. The bad news is that although we arrive just before 12, because of U.S. Customs, embarkation was delayed for about 2 hours. At least they had seats for us. Because I completed all cruise information online, checking in was simple for us. We decided to take an inside cabin for the entire trip, because we could get more bang for the bucks. Although the room is only 175 sq feet., we found it to be fine for the three of us. My parents slept on the beds, which they said were excellent, and I had the sofa coach. I am over 6 feet and nearly 300 pounds and had no problems.