First time here a week or so ago - came on a date. We were running a little late and they were SO accommodating. Let us walk around and take our time (although some or the lights for certain exhibits were off as it was after the last tour time).
Bunch of cool animals, everything was clean and well maintained and the staff were happy to answer our questions.
Also got a showing or whatever in the stage room where we got to meet and learn about a bunch of awesome amphibians.
Enjoyed it!