Lucky chicks and lucky us! I have my laundry area/entryway back! And the house doesn't have that "chicken-y" smell anymore. :-) But yes, it was mainly for their benefit.
It's very modular. Four panels that are 4 feet by 18 inches for the sides. Two panels that are 4 feet by 26 inches for the top. The sides are clamped together, there is a blue tarp on the floor underneath, and the sides are lined on the inside of the brooder with vinyl flooring remnant held in place with good ole' duct tape. When we're done we'll just roll up the vinyl, unclamp the panels, and store it.
At night I move the two heat lamps next to each other in one corner, and cover the rest of the top with a couple blankets and an afghan to hold in the warmth. So far they seem quite happy.