I have the AP three tub sterilite series rack with belly heat and am extremely happy with it. Life is so much easier since switching to racks from aquariums and let me tell you i definately think my snakes are way more relaxed and the feeding response is even more tremendous. My temps are dead on along with my humidity. I run a herpstat with my rack also. Hope you'll be as happy as i am with mine! Good luck whaat ever your choice.