While it was a while ago, we've done the GB Express trip from the airport area and it was simple and seamless. They handled our bags on and off the boat and right up to the immigration office at Blowing Point. The boat is fast and the staff very caring. I usually don't have any issues on the water but the day we crossed to AXA it was very rough and I guess they saw I was feeling the weather. They were very solicitous, offering me both bottled water and wristbands to help the situation.