I have been too zoos all over the world and this one is unique. It is not flashy but our kids (5,3,1) loved it. The animals were very friendly and yu could interact with them more than American zoos. It is built In a clif and Ina straight line so there is only 1 way to go!
Ate at the food place there which was standard European cafe. The best part is that the playground was just across the sitting area so thy could play while I ordered the food!
All in all it was great. We used the Salzburg card but would have paid the entrance fee! Great thing to do with kids especially if they are a bit younger (under 10)