Our first cruise on HAL we were the same ages as you. (Husband, myself, kids.) We all had a blast. When the kids weren’t with family they were out making friends with other passengers their age, as well as the performers. They were very sad to leave.
I would book two verandahs side-by-side. That way you can have the steward open the divider between the balconies to make it easy to move back and forth. There are also adjoining cabins with a door between the rooms if you want that option.
The showers on the Pinnacle-class ships are Amazing!!! They are HUGE in the verandah rooms (not so in the Neptune Suites) and have great water pressure.
The TV’s are large and interactive with the ability to view your account and the days’ menus so you can make your dining decisions in advance.
24 hour room service is free with the exception of specialty items as noted. Dining venues are varied and many. The Explorations cafe is a great place for small bites at lunchtime if you want to avoid the congestion in the Lido.
Speaking of the Lido... most stations the serving is done by the staff. There are small bites available in between stations (around the corner) where you can help yourself. Bagged potato chips are available at the end of the sandwich stations, which my husband loves.
There are popcorn and blankets available for movie nights at the Lido Pool. It’s like going to a Drive-In movie.
Your room stewards will drop off striped beach towels for you to take with you if you visit a beach. Just drop them on the bathroom floor if you need a fresh one.
Club Orange on a Pinnacle-class ship is fantastic. I think you are making a wise decision there.
Enjoy your cruise!