Great zoo! Tons to see, interesting layout and exhibits. I've been many times and still haven't seen the entire thing! Lots of play/picnic areas and plenty of bathrooms.
Our daughter loves the zoo; we've gotten zoo memberships the last two years so we can go as often as we want and not feel like we have to do the whole zoo in one day. My biggest complaint is the long walk from the rest of the zoo to Africa with not much to look at on the way. You can get a ride there, though; we just never do. Penguins are always a big hit when we go.