I have a freedom breeder rack for my adult females, and it hasn't exactly knocked my socks off. it's sturdy, the heat panels work, and the ventilated tops are a great idea. however, the heat seems somewhat unevenly distributed, the tubs seem old, and two of them don't fit exactly flush. Jeff was a great help and they're not hurting for customer service or responsiveness, but I'll probably go with ARS for the next one.