I found the zoo very exciting, as there are differnet things to see around every corner. My Children Enjoyed the park their as it was very different from many any other park. You can see the animals in a differnt way to Chester zoo, I would say you get a closer look at the aniamals an there are better views and places to sit.
I recomend Welsh Moutain Zoo as it is quiter than one in the city and you will have a lovely time.