This is a fairly large zoo. You definitely need an entire day to see everything. There are lots of interesting animals, the prairie dogs being my favorite. I was disappointed though that there weren't any aquatic animals like seals, polar bears and shark. Parking was no problem, lots of space.
There aren't many indoor exhibits so beware the sun! I ended up getting heat exhaustion by the end of the day and vomited. Drink lots of water and wear a hat! I would also recommended bringing snacks and even your own lunch.
Tuesdays are only $10 instead of $20.