It's not as good as I thought. The drawer is too shallow and there aren't enough room to hold the poop. Even I cleaned it up daily, when I pulled out the drawer, the poop stucked and dropped and I actually have to do more clean up jobs. Today the rabbit even figure out to pull out the drawer and mess up everything. I have to place tape to temporarily make the drawer stayed. The back plastic is kind of thin and the shape was changed. So when I fix it on the cage, the front of the box is a little tilted. I guess that's why it's able to pull out the drawer. When the rabbit pees on the edge and it would stay there as there aren't holes on the edge. The pros is that it's large enough for a 6 pounds rabbit. I have to look for another type of litter box. The seller packed the box well though, and it wasn't damaged through long distance shipping. For shipping, I paid for 15-30 days and it arrived in 33 days.
perfecto