We choose this cruise as it appeared that it would have enough options to keep us and our teenagers (15 & 16) entertained. We were right. The teenagers immediately became part of the O2 Club and we barely saw them, other than for dinner, for the entire 8 days. The fabulous thing about the cruise is we were able to give them their freedom without the usual worries that come with them going to parties etc. As for us we took advantage of nearly all of the activities offered on board which meant we had plenty to do during the day and night as well as time to spend relaxing - mainly in the adults only Serenity Bar.
The 3 island stops were ok, Isle de Pines being the highlight, with a beautiful spot to swim just a few minutes walk from the jetty. Without exception all of the staff we interacted with were professional, polite, accommodating and friendly which really added to our enjoyment of the trip.
My advice would be to pack lightly, there are easily accessible laundries on board which cost $7.50 per load (powder, wash, dry). Embrace the themed nights, it makes for a lot of fun. Go with the anytime dining option if your kids are teenagers or older (the early session has a lot of little kids). Another great thing to know is if you buy a bottle of wine you can take it with you as you move around the ship to different activities, you don't have to drink it all at dinner for example. You can even take it back to your cabin and bring it back to dinner etc the next day.
The cabin, whilst not large, had enough space for the four of us to move around. We had a king bed and the kids had a sofa bed and a bunk bed (which hangs from the roof). The bunk bed means that the "sofa" is not able to be used as such because the bunks hangs above it for the whole time. However there is a big enough gap that you can sit upright below it which is useful. There is a tonne of storage space for hanging and putting away clothes and room for the suitcases to go under the bed. Having a balcony - ours had four chairs and a table, made the total space feel a lot bigger and gave us somewhere to sit privately to read or just enjoy the view. This area of the ship is relatively quite as no interior rooms are accessed via this section of the corridor and it is in between two sets of lifts so only the cabins in that section really use that corridor. Surprisingly the curtains were very effectively - allowing for a good sleep in after late nights!
We spent the day prior to the cruise and the day of departure in Sydney. We stayed in the family room at the Breakfree on Clarence which was reasonably priced and an easy walk around Sydney. We jumped on a ferry and saw a bit of Sydney as well as catching up with family and friends. A drink at the Opera Bar always a good way to spend an hour or two.