I experienced this exhibit a couple of days after AD. I did not notice any glare problems. The turtles and the crocodile could be seen clearly in the water. It is a very good exhibit.
To be honest I really didn't notice as I walked by rather quickly. I will take David Brown's suggestion that it is not bad, though I wonder if the time he visited was sunny or overcast? This shot was late in the day after the glass was already in shade because the sun was at a low angle. I imagine full sun could make viewing difficult.