Hi ! I also have the "ladder-style" 2/4's. My girls seem to love it. They use the top one the most.
One hint I have--if you can, line the floor and up the wall with vinyl flooring. It makes it so much easier to keep clean, especially if your floors are wooden. I use a snow shovel to "scoop the poop".
If you have a flooring company nearby, maybe you can get scraps for free, or for next to nothing.
Also, I use cardboard boxes for nesting boxes. Then you can just throw them out or compost them when they get dirty. Of course, I use bedding in the boxes ;o)
Oh, and I have a feeder that looks like a paper hotdog holder. I have it suspended from the ceiling at the "girls" head level so they don't have to bend down to eat. (I know, they're spoiled). Also, it keeps the food off the ground in case you have a problem w/ any kind of animal, which I don't, Thank God!
Jen