I love this cage I currently own two of them.  It is large enough to accomadate my 7 females in one and 5 males in the other, with room to spare.  Bar spaceing is perfect for smaller rats, even babies.  It's easy to put together.  I love decorating it, there are so many options.  So easy to clean.  I would reccomend this cage to any one looking to purchase a cage.  There is enough room to make just a few or many ratties and their humans very happy.  It is worth it!!!