Our first cruise ever so we were not sure what to expect.
First off I will never use the Carnival airport to ship shuttle bus again. Arrived at Houston at 9:30 am. Had been told when I booked it that the shuttle would run at 10:30 and 1:30. We, as well as many other guest who arrived early, found that there was in fact no early shuttle and we had to wait for 4 hours until the 1:30 shuttle left. Would have booked my own private transportation up front had I know this. The same thing played about again on the return trip but the wait was only about 2 hours this time.
Getting on the boat was not bad at all, there were long lines but it moved along fairly smoothly.