...since I’ve been to the San Francisco zoo, probably 20 years now, so I’m sure they have made many changes since I was last there. However, over the years I’ve heard from various people that seem to mirror my last experience.

It’s not that the SF zoo is bad, it’s just that 1) I’m not a huge zoo fan 2) At the time, the SF zoo had ugly, not very big enclosures for the animals.

Hopefully someone with a much more recent experience can chime in here, but based on my past experience I would not go back.