That is a fun trip with kids.
Dollywood is one of the best and cleanest amusement parks that I have been to.
The theme dinners are fun also.
One thing I noticed is that the quality of the food at the restaurants really lacks compared to Texas, etc. One surprise for us was Sunliner Diner. It is good for breakfast and lunch/dinner.
We always enjoyed doing day trips to the national park. There are some great family friendly hikes to waterfalls, etc. Also some great mountain coaster rides in town.
Here is another recent thread ...
https://texags.com/forums/54/topics/3440327