We used the Turbojet to travel to Macau for a day trip from Hong Kong island. We spent the little bit extra for super class tickets, which means you get to sit at the top, a large snack/smallish meal is included and you get on and off the ferry first. Strolling past all the guests on the lower deck as they wait behind a velvet rope is as close to a rock star as I am ever going to get for that price, so it was good for a giggle. The upper deck is definitely less crowded though, and we were grateful for the food when we were standing at Macau customs for three hours.
PRE-BOOK YOUR HOME TICKET WHEN YOU ARRIVE! The crows and queues are crazy of a night with all the day-trippers heading back to HK. We stupidly tried to buy our return ticket when we were done with our day's touring and ended up having to wait at the terminal for about two hours. As we had the superclass we got to wait on couches and we got on earlier, but with normal tickets the wait was even longer. This is not a criticism of the service, as they cannot help if they book out, but helpful for travellers to know.