http://animalplastics.com/EP.html

anyone tried out the new animal plastics economy plastics rack? i am looking for a new rack as my babies are growing and will soon need to move up out of the baby rack. i love the price on this rack but i'm concerned about how well it holds in the heat because of the open back and sides design. how much difference will this make on a rack of this size heated with belly heat? all of the racks i have now are enclosed so i don't have anything to compare this design to...