I already had the small size C&C cage from here, so I decided to add the cubby system to it. WOW! The cage is so much better off the ground, and easier to clean. It also looks really pretty in our home office. It was not hard at all to put together, and put the exisiting cage into the bottom system. I highly recommend. I also love how I can fit all my supplies in the bottom. I also received my order one day from ordering!!