It's a good exhibit. The enclosure is spacious, well-shaded, and has a pool in the middle for them to cool off in. The decor and educational signage is decent as well. The only downside would be that it's not very naturalistic, but that would border on nitpicking in my opinion.
From the photo, the only non-"naturalistic" part I can see is the fence. In my opinion, there's nothing wrong with being not picky about "naturalism" . Hopefully I'll be up around the end of August to see the exhibit for myself- having family in Saint Louis is a great excuse for going to the zoo! Thanks for the brief description .