I am also very impressed with the Freedom Rangers. Grew out 25 last year, never a problem, ranged them in a hoop house (will try to figure out something with a larger area this year), they act like chickens but are sufficiently identical that it's easy not to name them, and the plucked carcass looks great. And, of course, tastes great.
Looking to do more this year, once I figure out the housing. Hawks and foxes could be a problem.
-- Nan