Unfortunately I have no experience with the vision racks. However I would highly recommend the 45 bin racks for PMHerps (
http://pmherps.com/racknew.html ) I have been using them for the past few years and have been 100% happy with them for hatch lings. I use heat rope with a spider robotics Herpstat2 that regulates the back heat for two 45 bin racks.