Here's the breakdown:

What we bought/spent:

• Admission Plus $41 kids (3-11) and $51 adults (12 and up) includes:  Zoo admission with unlimited use of Guided Bus Tour, Express Bus, and Skyfari aerial tram. (Price as of June 2014)
• $50 lunch for 4, plus ice cream snacks

What we loved:

• Ice Age 4D Interactive, can be scary for sensitive little ones
• Yummy food vendors strategically placed around park
• Clean and plentiful restrooms
• Watching a minutes old baby gazelle try to walk on wobbly legs while his mother licked and loved on him 

What we disliked:

• Pandas line 30-45 min. Waited 30 min max
• Petting zoo closes early at 5:30, while the park closed at 6. 
• No grassy areas to sit with kids and rest

Tips:

• Use moving ramps and kangaroo express buses to get around
• Do bus tour first, then strategize a plan of the key areas to visit first
• Watch , "We Bought a Zoo" the night before. It'll warm you up for those cute animals on the day of your visit.

Check out our day in a nutshell here.