sophiella, just read your another post. The night time activity in Flying Cow is very limited, only making red bean cake. This is not a problem for me since at night time we had dinner, have family time in the Japanese hut (enjoy the cookies that we made in the afternoon, kids jump up and down in bed, open and close those wooden doors a hundred times...), and it also took me some time to "handle" the kids (shower, brush teeth, etc.), so we do not quite need night time activities.
We book a 四人房 in Sanwant hotel. The room is big, with two VERY BIG beds. The package only cover 2 persons' breakfeast, there is extra charge for kids' buffet breakfeast (NTD220 per person if above 90cm tall).
In Babyboss, for most of the jobs, parents can stand very close to the kids, so a lot of chances to take photos.