I have not been there myself.
My mom (age 62) and my grandma (age 90) went to the Holy Land. It was something my grandma always wanted to do. She loved it. My mom liked it too. WDW , it is not. They said that there was stuff for the kids, but my kids are used to WDW. Honestly, I had tickets to WDW already and didn't want to buy more tickets to another attraction.
My mom said that it seemed pretty authentic as a theme park can be and she treasures the memory with my grandma (her mother-in-law) of the day spent there. My grandma went home to Jesus 5 months later.
I am sure there is information online that you can read up about the HOly Land Experience. This is all I know.
Pam