This ship sure has a lot of fun things to do, and lots of places to eat. And with all the walking around on a ship this size you sure wouldn't have to worry about gaining weight from all the good food.
I would love to try it out too. The only thing that concerns me is - can one really see, do and experience everything onboard in just a 7 day cruise. For us a 7 day is so, so short and we don't ever rest either, we leave the cabin the the morning and most days only return to get ready for cocktails and dinner in the evening.