We went on a rainy weekday in December since we were scheduled for a 2pm visit to the Ghibli museum 10 minutes walk from the zoo. It was pleasant and had a lot of Japanese animals, but nothing very exotic.
The guinea pig petting area was a real treat, and since there were no other visitors we didn't feel ashamed as adults to go and play with the animals. We also took advantage of the kids play area inside the cabin, since there weren't any kids in the entire park.
As others have said I wouldn't specific plan a trip or go out of my way to visit, but it was a pleasant trip and the tickets were very affordable (discount if you bring passport).
Own or manage this property? Claim your listing for free to respond to reviews, update your profile and much more.