I'm planning on gettings rats soon and I just ordered this cage off of amazon. I am planning on covering all the ledges, ladders, and wire flooring with mats so their feet and tails won't get caught. The dimensions are 30x18x55". Has anyone ever purchased this cage? If so, what are your thoughts of the cage and your experience using it with rats? Even if you haven't had this cage, I'd still like to receive any of your thoughts and tips for a new rat owner.