@DavidBrown That's very hard to judge right now. This exhibit is very small, in fact, if my memory serves me correctly, this outdoor section is of similar size to their indoor area. However there are plans to turn the field on the other side of the path into a multispecies savanna, which the giraffes will have access to. You can see the plan for the Africa Expansion on the map here (Map | Chattanooga Zoo).
As for a review of the zoo as a whole, I would say it's about average. While there aren't any exhibits that I would say are great, most seem to be adequate for their inhabitants, although there are a couple exceptions (bobcat's and serval exhibits come to mind).
