I am not fan of zoo's in general, but that being said I would still say this zoo is just average. The animals don't seem to come out where you can really see them much.
It is nice that you can bring your own food and eat in the of the picnic areas, but for parents with toddlers I would suggest the Children's Museum since your kids can get out run around and play vs being stuck in a stroller trying to catch a glimse at an animal.