I have two 7030's and a hatchling rack and a rodent rack. I love them! I have never used Freedom Breeder, so really can't compare them. I do have a rack that was made similar to a FB by Biggers & Callahan. I have a difficult time maintaining good humidity in the Biggers(like a FB). Some say the ARS are pricey, may be, matter of perspective, but for less that $10 for each cage space, I will do it again. I like the cup holder, flat bottom cage, no ridges, round corners, good heat. No complaints from me. Brian Hahn is a great guy to deal with.
Tom Harbin, Manchester, Tenn